Speaking of about 5 co-workers: they came through react bootcamps and have no knowledge of things I consider so basic I'd never have thought about it until I sa

Speaking of about 5 co-workers: they came through react bootcamps and have no knowledge of things I consider so basic I'd never have thought about it until I saw them struggle over a bug caused by it. For example, I had to explain the difference between a shallow copy and a deep copy to 3 of them. They did all seem to understand it immediately so it's not like they couldn't handle the work, but there's a lot of random stuff they never thought about before and don't even realize is a thing. And those are all much more basic than, say, concurrency and databases.