Spinning was removed from the PPL syllabus because more people were getting killed practicing it than were being saved by knowing how to recover. Also, whereas there is a standard stall recovery, there is no stanard spin recovery as there are differences in the recoveries of most aircraft. Some subtle, some large. The recovery technique on one may not work for another - or may even prevent recovery.
Spinning can give confidence in handling and is essential if a pilot is to operate in a regieme where it is more likely, such as military flying or aerobatics. But in a PPL environment in spin resistant aircraft, it's not essential.