As I said, I highly doubt that people will accept Metaverses at this stage.
It's way too early. The infrastructure around a lot of these metaverses are incomplete and game mechanics are too complex to understand properly.
Will you bother to learn so much about a metaverse just to bet $5? Or would you just put $5 on roulette on Roobet...
Fair, but that doesn't mean that there won't be a market for it. I'd reckon it would have its own fair share of the market if done well, after all, anything would become popular as long as the core concept is followed and the idea itself was executed properly. Besides, it's a step towards something, I'd rather test something that would give me something new rather than stay still, not that I'm saying that the current idea of putting the $5 on the roulette is bad, but rather since we're looking for something new, why not try it out no?