请教，私做的安全吗 ?

k6d

I think 私做 is a lot safer than agency. It is legal to buy and sell sex between two independent adult. As soon as it is one to one under a private place.  If you are worry, my understanding is that outcall to your own place is legal. As soon as you don't talk about exchange of money outside your house.
Btw, don't take my word, I'm not a legal profession.