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.
That is true and not only sportsbook but all the gambling sites and exchange that are now looking for mode of identity before you can gambling or do business through they sites should focus on fiat and leave bitcoin because the aim of bitcoin is privacy. Two people should be able to do business without asking each other passport, national identity card or driving licence.