I have many family members in the trades. "The trades" is not a homogenous group of jobs. Some of them got lucky and got good union jobs. Most of them work hard jobs that are hard on their bodies. They have an income that's enough to live on, but money is always tight. I know very few tradesmen in their 50s and 60s who would tell their children to follow their career path, other than the relative few who have managed to work their way up so that they are managing tradesmen, not working as a tradesman.

If you have a very specific career in mind then sure go for it, but just telling people to "go into the trades" is probably harmful.