I work for a large employer in the North West.
We recruit graduates and apprentices every year. We have 100s of agency staff on a temp to perm basis.
We struggle to fill roles.
My experience with teens is completely different to your.
DC in year 2 at uni has several zero hr jobs at a leisure center - lifeguard, swim teacher and manager - over the holidays works there full time, during term time gets a regular 10-15 hrs a week. Only one other uni friend has a job, the others are happy to reply and and dad.
DC in year 12 at college also works zero hours at leisure centre - probably around 7 hrs a week due to chronic fatigue and can't over do it. They are the only one of their friends and college class who have a job. This DC is also completing voluntary work as part of college course, most of the class cannot complete the course because they cannot be bothered to get the volunteer hours.
Family/friends DC don't have/want jobs either as happy for mum/dad to pay.
My DC were told at 16 you needed to work.
At 17 you needed to pay to learn to drive to give better work opportunities.
There are jobs there in my experience. It's about approaching directly, phone calls, emails, knocking on doors if you have too.
Sending a CV via Indeed isn't applying for a job.