More for my interest.
I have older dc who have gone through the Uni process and 2 who will applying. All have applied or planning to apply to competitive universities so non academic extracurricular activities haven't been a factor on PS. They might have added a sentence at the end of PS if sufficient space but it was never referred to in interviews.
However friends with DC applying say extracurricular is important "to show they are rounded" and I often see comments on posts about DoE or music grades as helping Uni applications.
I know US College applications are getting popular and I think it's much more relevant to their applications but when does it matter for UK universities? I appreciate you can convert music grades to UCAS points so that might be a factor but generally do Uni admissions look for the person to be "rounded" or is it still mostly academic based?
Also if it isn't relevant where has this belief come from? A good friend is unshakeable in her view Oxbridge will care about their Grade 8 whereas I know it isn't the case.
I think encouraging independent experiences (such as sports, hobbies etc)is good for teens and it helps to cope with Uni but not sure it helps to actually get in??