Its possible that some lawyers accept crypto but the problem how the goverment monitor the Income tax of the lawyer if the payment made by the client pf the lawyer is crypto. We know the crypto is very decentralized.
I wouldn't call this a problem, you're going to get taxed for using crypto one way or another. Why not use it on things that can actually benefit you.
Though I think this is a VERY small amount of lawyers as of right now, though for the ones who are doing it this is some pretty good PR to grab some crypto clients.