How if the online casinos don't support crypto and only for fiats? Will you leave the casinos? For me, support crypto is better but it no problem if only for fiats as long as the casinos trusted & reputable. You must know that not all online casinos support crypto.
For people who involve in the crypto world, they will prefer the online casino, which supports crypto. Usually, in the casino support fiat, people need to verify their account, which means they need to send the document before they can play. We don't want to send any document to the third party, which we don't know because it is too risky to do that. Fortunately, we have many online casinos that support crypto, and we can select one or more websites to play gambling.