Along the lines of MythBusters, or snopes.com, it would be helpful if there were a site to which you could go to find the truth about the latest health fads. For example, if you Google "Gluten Free" or "Keto" diets you will find 5,540,000 different opinions about whether they work or not. The same goes for squats- you can find information to support whatever opinion you already have.
Many people think squats hurt your knees, will cause incontinence, and if you do too many you will end up injuring your back. However, in terms of scientific evidence, researchers have found that exactly the opposite is true. There are stipulations, of course. First, you need to rule out other injuries. If you have a knee that hurts with walking, it will probably hurt with squatting. If you are dealing with prolapse, it would be good to get that taken care of before squatting. If you have recently had a lumbar fusion, check with your doctor before squatting. Actually, I met a lady that has had most of her spine fused, and she squats with better form than anyone I know. Which brings me to the second stipulation: It's important that you have perfect form.
Good form isn't good enough in this case. I have met more than a couple people that think they squat well, then start loading up weighted squats and end up with issues. Don't blame the squat because you rushed into it. Take the time to have someone watch you, take the time to try a variety of