It's not really a big loss in my own personal experience. I kept hearing about reversible male contraceptive technologies "just on the horizon" from my early 20's and I would have preferred getting a reversible procedure if such a thing had been available sooner, but when I turned age 35 and this tech still hadn't seen the light of day, I asked myself if it being reversible was really such an important factor. I knew by that point that I never wanted to have any kids, and any future partner I would be with would need to be on the same page as me at a minimum, so I just went ahead and got it done while I was still in my sexual prime so I could enjoy the years I have left.