alt Hacker NewsPeople will roll out the trades whenever employment is mentioned, but do you have tradies in your family? Do you have friends who are tradies? It's not easy to get in, it takes a long time to make journeyman, and work can have seriously spotty periods no matter who you are. Fact of the matter is, it's not really an alternative to anything except other types of bluecollar work.
It's easy to get a foot in the door to any of the trades but you're gonna slog out 5+yr of doing "bitch work" before you even have a chance to make real money because that's the nature of the licensing systems that these trades have that are enshrined by various degrees of law.