I mean, yeah, nobody that buys cryptocurrencies expects to buy goods with it, only to sell it to someone else for more money down the road.

A decade ago there was at least Silk Road and similar, offering something tangible in exchange for cryptocurrencies, now the best you can get is a half-assed El Salvador experiment with too many issues to list (but to give two examples, imagine not being able to pay for stuff because AWS's US-East-1 went down, or waking up as a "millionaire" because the app had an integer overflow).