Fewer semi skilled jobs that pay well and don't require good qualifications. Crap schools make it harder to get good qualifications. Jobs that are available are often in service industries which may be less attractive to some of them and don't pay as well as those semi skilled jobs.
The issue with this is that those semi skilled jobs still exist, they are either done abroad link or we import the skilled labour to save employers' training costs link.
We might not make as many fridges as we used to but we still have a power network,a phone network, water, sewage, undersea cabling, a car parts industry, we make furniture, computer parts, spirits, petroleum products, nuclear power, roads, houses, bridges, hospitals, wool, meat, milk, etc, etc which all needs to be itemised, quality controlled, priced, bought, warehoused, transported, perhaps exported, perhaps retailed.
There's a lot of semi skilled work to be done for some massive industries, there's a lot of training that could be carried out, there's even the opportunity to develop people, processes and ideas.
I'm only saying this because many posters on this board work in education or human resources (from what posters themselves have said) and I want to make the point that the UK isn't just degree>office, there are lots of fulfilling careers out there and worthwhile jobs to do that have been undervalued by employers because of their ability to offshore work and import ready made talent. As those two examples above show, it has been a deliberate sabotage of UK working conditions in some cases, and as a trade union member I stand against it in all sectors.