HaHa, "wasted on the young", that gives me a laugh.
If we can put this not as waste but as experience-material like the crooked clay bowl or the rough polished table top or the somewhat colourless picture, the experienced sexuality and its retrospective is also always connected with knowing a little better from now on where something is still missing, where something was too much, etc. The sexual life lives itself practically. I agree with those two stages which just show immaturity. It's okay to be a starter. I can now smile at my starter times.
Have you found the man you would put in the described category? If yes, what else did you learn? If I may ask...