@betnomi, just asking some curious questions.
Consider I do not have a regular income but I have bitcoin and holding it from long time. Was lucky to be one of the bitcoin whale. These days I do not need to do any work, business or anything. I live a lavish life.

I decided to deposit more than $50k in your casino. Played, own made it to $200K. Now want to withdraw.

Ownership of a business: Invalid for me
Employment: Fuck it
Inheritance: I am self made, bitcoin made me rich
Investment: Buying those bitcoin was fun at that time and I was working in Sainsbury's as a floor cleaner. Who the fuck is going to remember that memory from back in 10 years ago and keeping the documents too.
Family wealth: No inheritance means nothing from family.

Are you saying you are good to take my $50k?

You are in bitcoin ecosystem but applying some rules that are created by the financial institution. It's a conflict zone you are doing your business.