University student arriving at exams without the right equipment, one even forgot his pen

They'll never learn if spoon fed. If they turn up unprepared then tough. They'll be prepared next time!

They will never learn to be responsible for themselves if you give them ‘exam packs’. They are old enough to know what they will need and to remember to take everything with them. You do them no favours by babying them. They have to stand on their own two feet if they are to succeed in life. If you experienced what you did with undergraduates, Lord help them when they are faced with getting a job. They are only ‘babies in adult bodies’ if you enable it.

How about letting them fail so they learn from their mistakes?

Helicopter grandparenting is not good

My grandchildren went to schools where all this was practised from Year 9 or 10, so they knew the routine.
Certainly for GCSE and A levels candidates cannot leave before a certain time, as they could communicate with a late candidate. It is arranged so there can be no overlap. Not sure about university rules. I guess each has its own rules.
When I was at school we were not allowed to leave an exam at all. I was really pleased to find I could walk out at uni once I’d finished and checked.
It is time that students grew up. My son is a university lecturer and is far from happy with the attitudes and behaviour of some undergraduates.

Leaving an exam room 5 minutes into the exam - is that allowed? Sadly some young students are a bit spoon fed these days but not all. I find many more ‘savvy’ than I ever was at that age.

Send them away, they won't learn if you spoon-feed them.