It costs more to teach trades (HVAC, plumbing, welding) than to teach most college courses because of the equipment involved, so that's a smart move on Trump's part.
Personally I’m in favor of NO college grants across the board (less government spending and also that makes college cheaper for everyone when you deprive the schools of money).
That being said, I’d vastly prefer the money goes to something that actually has a use for society like trades and skills.