It does seem that OP is only worried paritcularly about freshers which is quite ignorant seeing as anyone (including non-uni students) can still attend freshers events and parties, and you can basically do freshers week during any part of your year.....I also think that universities will probably not allow you to suddenly take a gap year unless it was planned. I asked my firm choice to defer my year and they asked to provide me with a suitable reason to allow to defer the year since I didn't apply for a defferal in UCAS. If everyone had the same mentality as the OP then there would be a much more competitive intake for the 21/22 year and so universities would most likely reject defferals unless there is a geniune valid reason that would help. Its also worth noting, that you need to be seriously productive in your gap year because if your just taking it for the sake of it then it could potentially harm your job prospects in the future. We all understand that if lectures do go online, you won't get the same value of education (and trust me as a uni student I know), but most of us are in the same boat and the best thing you can do is try and ask for a reduction in tution fees for next year.