NFTs go beyond artistic pictures. They are supposed to be unique virtual collectibles. The most common NFTs we see are pictures, because it is easier to produce, create and launch for speculative profit and hype.
But the most useful NFTs are the virtual items which can be used inside online multiplayer games or metaverses. This is the real practical usage for NFT. Unfortunatelly this potential isn't being explored by the industry, as there aren't viral NFT games and metaverses going on right now. This niche is pretty dead, saturated and vicious in this year of 2022.
metaverse is still in the early stage so i won't say, this niche is already dead. let's see in the coming months or years, once devs are seeing the demand with meta, they may develop this into something attractive to all generations. as people are still looking for possible ventures via digital mode, metaverse has still the chance to blow up in the future.