My point is that just going through something doesn't make you qualified to know if that something was good or not. Doing research about the topic is important

My point is that just going through something doesn't make you qualified to know if that something was good or not. Doing research about the topic is important to complement your personal experience (or your lack of). If you went to college and then tell people to not go to college, maybe you should try to talk to people that didn't go to college first to see how it went for them.