I have shaved since I was 16. Back then it was easier to clean up after a good jackoff. Then as I became sexually active it was again easy for us to clean each other without leaving "evidence" behind.
Then I was in very good shape and shaved everything.
Now my wife and I are both shaved. For me, I like to go down on my wife without hair. For her she likes it when her period come along, she is cleaner. For me, for about 15 years I had a stripe up to my belly button but my wife asked me to shave it because it was uncomfortable during sex.
So, it is cleaner all I need is a wet tongue to clean me and my wife likes skin on skin as do I. For her, she is cleaner and is much more comfortable. And we both like the way we look shaved.