I started slowly down (unable to add +5lb each time at about 2x body weight for squat and deadlift, 1.3x body weight for bench, and .7 bodyweight for press).

After that I switch down to +2.5lb each sesh, then down to +1.25lb, etc. Eventually I'll migrate away from novice linear progression and give the texas method a try.

Kids in or just out of high school seem to go alot further than 2x body weight, so age is def a factor.