Definitely haven't been in this position but I do have reasonable knowledge about Gap Years, I've flirted with the idea of one myself in the future so I'm like you.
Basically the Gap year will be a year off generally in which people will travel, work or do something else that is constructive. If you're going to do it to chill, sit on the sofa and play video games then you're definitely not reaping any benefits at all.
From what you've posted you're going to do a traineeship which will definitely hold you in good stead for when you make the transition into Uni. Why? You will essentially have matured, become a man/woman and have set yourself up to not go into University being naive.
To add to that, if it's your passion then I think you should really explain that to your parents, I'm sure they'll understand after a while. There will be no worse feeling than dropping out of Uni after a year (something that is common mind you) because your head isn't in the zone or mentally equipped to deal with Uni.
A gap year also lets you reassess what you want to do with your life? Do you want to continue with further qualifications in hospitality? Do you feel that it was a waste of time? Do you want to go on and do a degree? It will give you that direction.
Try to explain all of this year to your parents, above all, explain to them that one year in a career that will span 40+ will not really mean much if you're doing what you really love.
Being paid to do a course is definitely a bonus, that helps a lot.
I know it's weird having this sort of advice come from someone younger than you but I've received this advice from older siblings with genuine experience so I want you to be just as prepared as I am. Would definitely be better though having someone else who has gone through a gap year comment on this post though.
Good Luck Sendoh
