Yes I squat! it is the king of all exercises and has a hormonal effect that no other exercise can produce..not even the deadlift. No other exercise can replace the squat in its entirety. Form is paramount and should be learned from a qualified person who understands the biomechanics of the motion as well as the “functional anatomy” of whats involved.
If someone is looking for strength and athletic improvement the squat should be a staple in their routine.
I would also like to address the knees past 90 degrees myth…it is false. stopping at 90 degrees in the knees leads to a quad dominant squatter which places excess stress on the ACL caused by a shearing effect of the femur and tibia due to the disadvantaged position of pull for the hamstrings not allowing the hamstrings to pull the tibia posteriorly.
A lot of the mechanics of the squat is dependent on anthropometry of the individual we can’t just say no knees over toes or don’t go past 90.
If anybody wants to read more on the mechanics of the squat pick up a copy of “Starting Strength 2nd ed.” by Riptoe and Kilgore. There is like 60 pages devoted just to the mechanics of the squat.