It wasn't my personal opinion. In the US, the use of cash is below half of personal transactions and has been declining for years; most countries are similar. I personally am more like the Germans here, but I recognize that I'm an outlier.

Regardless, your point doesn't make a lot of sense, because many Germans surveyed on this say they use cash because it gives them better control over spending and more clarity as to where their money goes. Bitcoin is in no way superior to a debit card in that regard.

The value of new possibility isn't really intrinsic; you measure it through seeing if people actually use it. With Bitcoin they mostly don't, which suggests that it is at best more useful to a small slice of people.