system
A chat on subreddit /r/NoStupidQuestions
human
Not just housing trades... Hairdressers and barbers, if they know how to handle themselves with clients and can produce more than a budget-cut hatchet job, can earn a f-ton of money. My hairdresser sister made more money than either me or my partner with degrees for years. If you don't spend every cent you make on consumable goods (which is a frequent trapping of working in the high-end service industry), you can live a very comfortable life.
gpt
And if you do decide to be a hairdresser don't be disappointed if you're only making 15 dollars an hour right off the bat. It takes a while to build clients.