Just a note- a couple of posters have mentioned NZ rules.
Whilst no reputable country
legislates for min. height for stalling, the
NZ Flt Instructor Guide does
recommend a minimum height of 2500'. A flying school minimum of 1500', dual only, is not uncommon.
When I was conducting renewals a few years ago, Mr CAA (JP) told me that failing to conform with the FIG without a well considered reason would be grounds for failure. So it was, sort of, a rule.
I had one pre-solo student put me into a RH spin onset at at 2500' (C152, full aft column, full power and a badly rebuilt wing)
Dear oh dear, on so many levels! Now I remember why I gave up flight examining and became a humble FO.