People do it to themselves cause let's face it, way too many lazy people. I started 8 years before home computers which meant to chart the Dow 30, took hours by hand, by time home PCs came out, I was good at charting. I doubt most would now learn by hand let alone take 2 years and learn to program ideas.
Reading on this forum, new people should grasp how hard this is for everyone, even very gifted intelligence. The markets to a degree are controlled, seldom read producers go bankrupt or market makers. It not luck either. Yes, we all read some huge trader busts out, am sure he violated risk rules.
And one hit wonders like Larry Williams who did over 10,000% one year, but most didn't know entire deal of him having multiple accounts and he was having steep drawdown when year ended. But the masses popped huge sums to get his systems, even me, but I bought it and tossed it into a pile of material I was buying to test years later.
Most people who "teach" don't teach, really takes a 2 year commitment as there is so much to memorize, very very few people actually want to learn this long. And most teacher's don't have the knowledge or want spend 2 years with anyone.
So new people are just plain like deer in headlights, they have no clue where to turn and want easy life, dreams of grandeur, they don't want to work long hours in the hardest job on the planet for most. They see "neighbor" say he doing well and think damn, I am smarter than him, this should be easy.
Most of those who PM me in past have no clue when not to take signals, know nothing of risk, management of position or backtest.
Some guy/gal offering to teach over a few months is teaching a system, guess what, you have to be very knowledgeable of when drawdowns exist and if too many people are doing that system, larger traders will force protective stops be triggered and they reverse.
Life is good as I wait for stops to be triggered so I can get in.
Want to become a doctor? 10 years from high school before making bucks, many have said it easier than learning to trade.
Trading is about very hard long hours, lose your emotions and memorize patterns.