It depends how you define " worth it". Is is worth it monetarily-- no way- in every way i can think of-- statistically, return , risk of ruin, I could go on and on.....
Is it worth it as a intellectual challenge? Yes, it's the best it gets imho in that category.
If u need money, start a business. If you have money and like a challenge-- learn to trade.
It all depends on the business you choose, as some are worth the time and effort, others are not.
I do agree that if you are not dependent on money, as in have no debt, your kids are reared, and you have some sort of basic income, then, trading can be very interesting and challenging.
If you owe loads of money, have big house, big cars, and a wife that spends money like it is confetti, then, trading can be your biggest nightmare

