Not only that, but also in the school holidays between leaving school and starting at college/Uni, claiming they were job hunting, etc.
Add in to the mix, the ones who suddenly claimed they were homeless, virtually the day after leaving school, from some made up argument with their parents, who got a council flat for the Summer and then they suddenly "made up" with their parents when term started.
I knew a couple of people who did it every Summer between school and college/uni terms.
I think it was stopped early to mid 80s, but was a well known "dodge" at the time among young people.
My first boyfriend did it - happily living at home, but lost his job, and suddenly, hey-ho, big bust up with parents meant he was homeless. We "enjoyed" his little council flat for several months until he got another job, and then as soon as his entitlement to the free council flat ended, he "made up" and went back to live with parents.
There has always been a lot of benefit fraud! It's not a new thing!