It can certainly be argued that children that sit in a classroom for 16 years may lose much of the spontaneity and natural desire to explore that they were born with.
They might be a lot more passive, accept what is handed to them with less skepticism and fewer questions, be hesitant to try things without social proof, and may be ignorant of how the world actually works. They may be more likely to live in their heads and be less in touch with their own very real needs.
A lot of things can be argued, but not all can be substantiated. Even if I agreed that studying somehow harms children, that would only encourage society to rethink _how_ but not _whether_ to train children.
(Where "lucked out" doesn't mean it was worth it. It's relative.)
You just need to look at the upside enjoyed by other countries which have seriously invested in education. The easiest example is South Korea. I'm not saying it's perfect, but they went from the Korean War to Samsung and LG in half a century.
The reason I ask is: we did an exercise recently where we had to go through the various assumptions for a product. The assumptions we made were
1: education = better outcomes
2: more education = better
3: formal higher education is necessary for getting a job
4: people actually need to get jobs
I am not convinced these are true.
Someone who has a lot less education in the UK would likely have far more opportunities.