Yes and although we don't know them properly , usually you don't if it's a dating site , I've met loads of guys and not old ones I might ad .
who are just dipping their feet back in the water so to speak .
Some have been bereaved /divorced and not ready to date properly so it's a simple solution to a natural need for physical and ( if it's offered ) emotional support.
Quite a few girls have married clients and are very happy.
I dated a guy for five years , not a punter but understood for me it's just work nothing else , just be careful because with all due respect you sound vulnerable and someone will smell it a mile off
Don't take offence it's meant nicely , but I do believe it's possible to meet a good guy