I can second the advantages of taking a year out. That year's maturity, ideally with a mix of experience, helps a lot when dealing with the new issues that first year medical students come across, especially on courses with early clinical experience.
It gives a chance to mix with a wider range of people, deal with bureaucracy (which is endless in the NHS), and gain some perspective. Indeed one friend of DD's realised he didn't want to study medicine at all. (Doctor parents, so he had always assumed that is what he would do.)
Good luck to all.