Its a politically strategic time to reaffirm some kind of public 'pride' in the Pound. Its a symbol of nationalism.

(am brit)

The new pound coin has been in the works for years, it's not some knee jerk reaction to Brexit.

I would suspect the rate of introduction is increasing. So while maybe it took 20 years to circulate this 45m amount, they may expect the next 45m to come though in a few years. That and pride/confidence in money validity. This is my guess and not fact.

Anecdata, I know - but certainly even 5 years ago it was rare for me to spot a forgery in my change. Over the last few years I found more and more - so I'd think that the process and cost for creating fakes is dropping. Though since contactless payment has been around I can honestly say I've spent actual cash about 4 times this year so far, so my collection of 'interesting coins' has not been added to like it once was.

Not sure if this is flawed, but I want to attempt an analogy that felt right to me.. Let's say they figured out catching a thief cost £500 and it became public knowledge the police wouldn't investigate any theft under £500. The cost of transitioning to the £1 seems worth it to prevent further abuse.

Your analogy is flawed because you are discussing investigating a crime that has been committed. The purpose of the new coin is to prevent the crime from being committed in the first place by making it harder to commit.

Given the expense of rolling out the new coin, it probably makes more sense from a economic and moral point of view to spend money investigating these crimes rather than preventing them.

> Let's say they figured out catching a thief cost £500 and it became public knowledge the police wouldn't investigate any theft under £500.

Is this not already true? When my laptop was stolen, I was advised "don't bother reporting it to the police".

It might well be true, but the police themselves can't say that it's true in an irrevocable way. The recent indie film "I Don't Feel at Home in This World Anymore" is an entertaining consideration of this scenario.

There is some kind of psychological cost too, since the money is only valued as much as people want to value it. Too much fakes might damage the brand more than the face value of the fake coins.

This is legal tender inside the UK, people can't put a value on it. Outside the UK the coins have no value as only bank notes can circulate abroad.

If forgers can infiltrate 2.5% to 3% of the market, there's no reason for them to stop at such modest levels. Why not try for 30%?

We also don't know anything about the volume of forged coins withdrawn from the market each month. If detection at pubs, grocery stores, etc. is poor, then fake coins enter the market at will and are detected only when merchants present their cash to banks. That's annoying for everyone, and it's possible to come up with scenarios in which each year sees 2x or even 5x the introduction of fake coins, with many of them staying in circulation for only a few months but causing damages anyway.

In either of these scenarios, clamping down now on forgery is economically prudent, even if the 100 > 45 comparison doesn't reveal the true cost.

If we knew that there would only ever be £45m worth in existence then perhaps not but one would expect that this figure is growing.

Sweden is also replacing the coins with new ones and a major advantage I keep hearing is that their weight is lighter, which reduce transportation costs and makes it easier for bank.

But I would guess from a public relation perspective, asking a whole population to replace their coins just to make it cheaper and easier for banks is a harder sell that arguing security.

It isn't really a cost/problem to "ask the whole population to replace their coins". Coins are constantly being circulated, with worn ones replaced by new ones anyway.

The cost of changing comes primarily from businesses having to update vending machines, coin counting machines, etc (as well as increased production costs due to the new security features.)

But this switch has been planned for many years, so businesses have had a long time to prepare.

From experience, the lighter weight makes the coins harder to tell apart. The old coins had three denominations: 1kr (~$0.10), medium sized, thin, silver; 5 kr (~$0.5), big, thin, silver; and 10 kr, small, thick, golden. Their big size (compared to Euro coins) make them comfortable in the hands and trivial to count the right amount.

By comparison, the new, smaller coins are much harder to grasp and the new denomination (2kr) is hard to tell apart from the new (1kr). The new notes are similarly hard to tell apart, as they all i) have the same height, and ii) use similar (pastel) colors.

"Never attribute to malice what you can blame on stupidity", but it almost feels like they are making the new cash hard to use on purpose.

The main reason for doing it is that they don't want the public to lose faith in the "value" of the pound, which will eventually happen if forgeries become more abundant.

I'd imagine the point is to prop up confidence in fiat money. Cash represents 3% of "money" so a small counterfeit issue with pound coins is a fraction of a %.

Meanwhile the entire currency is debased annually by failing to include land prices into the inflation calculations, despite most credit creation being against land.

This debases GBP for workers every year. Therefore propping up confidence is vital.