My daughter, a Cambridge MML student currently working in France, has seen the extra costs, admin and delays with visas too. Of 3 interns they all had problem with their FR visas and needed a 2nd visit (and another £70 fee on top of the visa cost). That’s not easy unless your parents are well off.

If I understand Turing correctly the universities don’t even know how much funding has been allocated to them until students have started their placement. Therefore the student, or parent, has to speculatively cover the costs in advance unsure if any funding will be available.