You and me both on the "wish I'd done it 10 years ago"! Bitcoin is certainly an option, in the sense that there's no central authority who can declare "no sexwork transactions allowed". But it's soooo speculative and the value swings so wildly at this point (it lost 10% last night!). On the other hand, a sexworker getting bitcoin always has the option to go sell it immediately so they are not at risk of losing it all (or of course holding it as an investment). There's other longer-term risks, e.g., national governments pass laws to forbid bitcoin-to-dollar (or whatever currency) transactions. But that appears to be a ways away

I personally would be fine transacting in bitcoin at this point. It's pretty easy to do once you understand it. I worry that one of the problems is that most people don't understand it; bitcoin scams are rife in the online world, mostly built around the fact that people (victims) don't understand how it works