SIM card is key. In the US, last I checked, networks won’t give you an extra SIM for the same line.

So you’d have to get an extra service line :S

So... the logical conclusion is you would instead have a spare phone at home.

Which is a significantly bigger investment. An extra phone is a permanent loss of the money that went into buying it, it requires maintenance (of a sort) and needs to be replaced on a regular basis since the payment apps will presumably continue to require relatively recent operating systems. It also requires a dedicated SIM card with associated cost.

As a bonus, phones sometimes explode and set fire to things - when they're not busy getting hacked :)

You'll adjust.

Hmm, keep $200-600 of quickly depreciating assets whose creation is a sin against our children’s enviroment when I can have five crisp linen Benjamins at home?

And do the same for car.

And the hotel room when you are travelling.

Doesn’t seem too logical.

You know I already have a spare phone at home. Cost me nothing technically since when I upgraded I just kept it instead of throwing it out.

Reduce, reuse, recycle.

Y'all bitch it's ridiculous (and I ain't saying it's right or that I agree with the premise of having to do it in the first place), I'm just saying thats what people will do faced with the situation.

Logical: perhaps. Ridiculous: definitely.

Most of life beyond the hunter/gatherer stage is ridiculous.

It's ridiculous all the way down.