> it is not difficult to find places to spend either of those currencies

I beg to differ. There's a reason actually paying with Bitcoin/ETH/crypto somewhere (anywhere) is celebrated on crypto twitter, /r/bitcoin, etc.

After 14 years it's still a novel and rare enough experience people feel the need to record videos of it and post them online to celebrate "adoption".

Imagine sending a tweet in 2020 (14 years after founding of Twitter) being noteworthy. Ridiculous, right? That's what crypto looks like to those of us not trapped in the bubble/echo chamber.