I reckon it’s a good idea to practise slow flying in landing configuration at altitude. 3,000’ AMSL on a nice cool, high pressure day can be the same density altitude as 500’ on final to a sea level aerodrome on a hot, low pressure day.
I don’t think you can do a proper short-field landing unless you know the gentle hints as to when you’re aircraft will stall, in the real world.
I’m frequently surprised at how little runway I need to do a ‘normal’ landing in my ‘high performance’ bugsmasher, then watching subsequent landings in little Cessnas and Pipers coming in high and fast and using up most of the runway.