Let's review - I play singles tennis. Have played with guys in this very thread who play 4.5-5.0 tennis and know me in person. I play USTA teaching pros who are 5.0, and now and then I play a 5.5 ex D1 tennis player and a blue chip junior when he needs a match.
So all these guys need to learn to get to net? Or they already know how to get to the net and go when needed to maximize their performance?
I think the answer to that question is #2 and that you are just ranting. The 5.5 beats you doesn't he? I'd wager he goes to the net enough for his game..