I agree with all of your points on masturbation. But the thing I love most was the holding the space of sacred union!! HUGE!! So many have lost the value of the deep exploration that happens in the depth of that bond. And STD's (spiritually transmitted diseases) are for real. I had to have a shaman do a cleans for me after my last partner. And that would be another benefit of masturbation, it can keep you out of unhealthy relationships.