Family (wife and kids) and good paying government job. So, basically, everything. In the worst case scenario SPs will have to move (if they conduct their business at a rental property) and their parents/friends may find out (but most of them know it anyway). I doubt SPs can hide their profession from their spouses (if they are married) and since sex work is not against the law, they cannot be fired from unionised job. Clients, however, commit crimes, so, they can be easily fired.I'm sorry what do you have to loose that we don't?
Basically, SPs have the same things to loses as a single 35 y.o. client who works as a mechanic or an electrician. However, a 45 y.o. guy with government job and a family has much more to lose than a regular SP