Let's not give this young chap a false view.
ANSPs are shedding Assistants en masse. New electronic systems are taking their jobs and those that are left have plenty of experienced staff fighting for them.
Even if you did find a post, there aren't many employers that will pay for ATCO courses, there are too many controllers in the market.
Final pointer; if you're not sure whether you want to be an ATCO, don't bother applying, the competition is so fierce that only those who show total commitment will get past the first hurdle.