Pantglas2
Your comments are noted imaround.
I suspect though the OP was referring to casual jobs during holidays etc as that age group would be in further education before looking for career positions.
CVS/Resumes would be OTT for washing up, clearing tables, cleaning and simple act of asking if there was any casual work available at an establishment would show they wanted to work.
The teens I am talking about here in the US are looking for the same type of work. Part time during school holidays, seasonal work, and even part time year around work. We have 12 weeks off of school through our summer, so tons of teens are looking for summertime work.
How does the application process work in the UK? Do they typically just go into a business and enquire or are there applications to be filled out online?
I miss the old days when you could just walk into a business and say you want to enquire about a job and got to talk to a real person. It was so much better and more personal. Sadly, that will never be the case for today's teens as AI continues to roll out. It will get worse, IMO because a lot of those teen jobs will be automated.
The next generation is going to hit a crisis wall we have never seen, IMO.