A theme topic, whatever often talked about on this forum, is the $5 hammer attack.
Many people suggest to keep your bitcoin holdings secret, thus preserving the anonymity of bitcoin to a certain degree.
But then you get sportsbooks asking for photos and passports, and god only knows what else.
If a sportsbook wants all this, I respectly suggest they change to fiat.
Most of the gambling sites I'm playing are not asking for KYC so far, they will only ask it if you won a big amount, which is not an issue as they only want a verification majority of gambling sites are doing that, you cannot ask them to go back to fiat, in fact, we should be happy that so many gambling sites are now into cryptocurrency.