Trade school is a scam
Trade school is a scam, and the reason for that is because Trade schools don't provide adequate skills to the students that are willing to learn their respective trade nor do they provide anything useful or of essence regarding their careers on the trades.
I'm a student of a trade school myself and I specialize in electrical installations and while they do teach us a couple of stuff both theoretical lessons and hands on work they are very negligible and insufficient when you actually work that trade in a real job site providing no useful knowledge or manual skills.
Also those lessons in school are very boring, which not only means the students don't give attention so they don't learn anything in the first place but I've also noticed that these boring lessons drift away many students interest from the trade they've chosen because they develop a bad impression of those trades due to the long boring and uninteresting school lessons.
And I know you might tell me about certifications and licenses but they are also useless, I've talked to many craftsmen like plumbers and electricians that have have been doing these jobs for 50+ years, that have told me that they haven't graduated from high school they don't have any licenses for their trade jobs and neither has anyone ever asked them for a license at work, and one quote that a plumber told me and stuck with me was "licenses don't make the masters, work does"
And to top it off, I work construction myself and I can assure you that learning a trade at the job site is much more effective and much more enjoyable than at a trade school, the things I've learned it trade school haven't benefited me or any other student I've talked as far as work goes, doesn't make you get a job any easier and it doesn't learn you the trade.
To summarize it, like that plumber said, books don't make the master the work does.