DS1 is applying to do maths and physics at uni but wants to have a gap year. DP is concerned he will lose knowledge / skills in that year. He hasn't really got any plans other than get a job (retail / hospitality) and maybe do some traveling. He was hoping to do a third year at sixth form to do Further Maths AS and a bit of Engineering but he will already have 3 A Levels by then so its unlikely they'd allow him.