In the world of park-n-rec ball, youth league, and clubs of fun - it's no big deal.
In the world of competitive sport, your one leg up on the other guy when you come prepared with your game face and all the accessories that are attached to it.
So, I guess sharing your stuff is ok when the guy next to you says - "hey, how about if I use your glove, your bat, your spikes, your hat." Or how about the guy that's always a day late and a dollar short? Some players will inevitably come up on the short end of the stick. Some guys will be stretched out on their couch at home playing video games and stuffing their face with chips and dip - while your cranking out the tough stuff of studying the game, developing your best pitch, reading and posting to LTP'G.
So, why not loan your stuff out and give everybody the same shot at being noticed without preparing for the time in the sun with good equipment like you have.
Look, go back and read the posts of BBathe and really concentrate on what this man is saying and why. I can guarantee you even money that he didn't make it to where he's been by giving others the same chances that he wanted by helping anyone but number one. Now I'm not suggesting selfishness or anything close to it - just play the numbers guys. The better you are ------ well the better you are. Let some one else work it out for themselves ... that includes coming to a practice and a game as well prepared as you are.
(been there - done that- got the T-shirt)