Some students take some time out before going to university, for many different reasons: to travel; learn a new language; to do some voluntary work or gain some paid work experience; to take a break from exams and deadlines; or to have more time to work out what they want to do.
There are some interesting articles packed with plenty of ideas:
Pros: developing new skills such as time management, languages and flexibility, as well as developing independence; gain experience; earn some money; experience different cultures and lifestyles.
Cons: unless you plan your time, it can be difficult to stay focused and productive. Poor planning can also result in missing the deadlines for university applications.
Admissions tutors' views on taking some time out will vary. It's rarely a problem if you've used the time well and can effectively articulate the benefits related to your future studies.