Its very linked to geographical postion in the country what some people are lacking and others get exposure to.
For example way up north flying through hills isn't an issue, but stick them on the easy down to Gatwick and send them off round the London TMA and that may cause issues. And vice versa.
Nothing special about SVFR most PPL's get exposed to it while doing a night qual if done at an airport in controlled airspace.
And the going foreign again is regional. Once you get away from the south coast/west coast to Ireland not may of the instructors will have done it either.