I punt in the NE which is quite isolated geographically and has a fairly small, well established pool of WGs.
There are 100,000 university students in the NE:
27,000 Northumbria
23,000 Newcastle
20,000 Teesside
17,000 Durham
13,000 Sunderland
Assume half of those are female.
While there definitely are students escorting in the NE, if there are even 50 of them (and I'd be surprised if there were anywhere near that many), that is only 1 in 1000.