It's true. Hobby is supposed to bring pleasure, but not losses and risks. Maybe because of it, in such cases it's hard to consider trading as a hobby.
Go ahead and spend 100 hours building a RC airplane from a kit. Take it out to the field, get it up into the air, and then flinch on the controls and watch your RC plane crash into the ground. You have just destroyed 100 hours of your time, plus the cost of the RC plane. That is a risk, and a loss if you crash. Hobbies can be inherently expensive.
You make trading sound like cancer. LOL It's not that bad. Trading is more like an obsessive high-stake venture. Oh well we only live once, we are allowed to have some adventures.
I started in 1978, stone age. If I knew my personality then as I know it today, trading was the very worse thing to ever do to myself as I had to sort of overcome the weaknesses of self caused from overbearing Father strictly insisting to lose at anything would be considered a failure, very strict religion at home, like growing up in PTSD environment. To this day when I have losing trades I feel strange. I have done well for myself trading all these years but automation is the best as I don't watch it during the day, but I am manually trading new systems. I love designing systems and challenges of reducing losing percentages. I have over 40,000 hours screen time, yep obsessive. I don't see it as high stakes venture, I see it as risk adverse calculated approach to opportunities that present themselves. Where I live, walking across almost any street is more risky than the markets. I can within limits know possibility of risk on each trade and even day trades if something horrible happened and lost $5000 per contract would not wipe me out as I use min. 10k per contract that I scalp/day trade. Growing up I was taught that investments and trading were hobbies like something for a rainy day and I should work a real job for employment. So even when I have spent 100 hours a week at trading, chalk up to hobby time, all my hobbies are investments, way I grew up, am really only happy when am working.