Most people have never done a real squat

Most people think they squat correctly. They don’t. If your heels lift or your toes turn out hard under load, that’s not a stance problem, it’s a mobility one. Usually ankle dorsiflexion, sometimes hip capsule restriction. Your body is compensating to get depth it doesn’t have. Compensate long enough and it compounds to knee pain, hip tightness, “wear and tear” that gets blamed on age instead of on the pattern that caused it. Although every person differs when it comes to hip sockets and femur length. Just test what you can do in your own range. The proper squat is meant to load the body. Feet narrow and straight while the knees point out. You might not have “bad hips” or knee pain but rather an improper squat.