NFT's in particular do feel pretty scammy, and crypocurrencies in general are of questionable long-term value, so in that sense I agree with you. But underneath it all, it seems like there are a couple of interesting ideas that it might be worthwhile to understand more about. Blockchains as a form of "decentralized trust" for example, may have limited utility in most situations, but there probably are cases where that approach makes sense. And "smart contracts" seem like something that, if ever perfected, could have utility as well.

That said, I am not advocating anyone run out and invest their life savings (or any money other than what they would take to Vegas on a gambling trip) in crypto / NFT's, etc. :-)