Do they have Senior Proms in UK schools?
At UK schools there are usually ‘prom’ style events (sometimes but not always named proms) for students at the end of their compulsory education (at 16) and also for students at the end of their further education (at 18). I’m not sure how this equates to the US education system as I know it differs, but yes there are proms. I expect there are quite a few differences between the UK and US style of proms, though.