Those numbers sound like reasonable estimates and goals. Having taught classes at TechShop, that first handful of hours is important. 20 hours of welding instruction ought to be enough that you know whether you like it and can build some useful things, but probably not enough to get even an intro-level job. It should give you a clue as to whether signing up for a community college class is a good idea or not.
Also I’m really confused by your inclusion of EE in that list; I’d have put it on the other one.
Those numbers sound like reasonable estimates and goals. Having taught classes at TechShop, that first handful of hours is important. 20 hours of welding instruction ought to be enough that you know whether you like it and can build some useful things, but probably not enough to get even an intro-level job. It should give you a clue as to whether signing up for a community college class is a good idea or not.
Also I’m really confused by your inclusion of EE in that list; I’d have put it on the other one.