Whatever the reason or mix of reasons for not riding or riding, no one should feel like they need to justify why they don't ride. The welfare of the equine matters most, and as long as it is properly taken care of and you love your horse it matters not why you choose not to ride.
I am not anti-riding. If you choose to ride, ethical permissive riding is what matters, listening to the horse. Everything non ridden is great for all equines, ridden or not ridden. The relationship with a horse is what you make it. A deep meaningful connection based on open honest dialogue as a partnership, based on mutual trust and above all with no compromise to well-being is what matters.