Yep. I brag about it - even though I am still not that good at it, my kids both rock at the game. Their friends know too. Why wouldn't they?
Look, being cool is not being what everyone else is. Being cool is being who you are. If everyone is wearing the in thing and doing the in stuff, they are by definition no different from everyone else and that makes them common and ordinary and nothing special.
If you are different, you are by definition unique. You are beyond ordinary and you are irreplaceable.
Listen, in chess you have a grid 8 squares by 8 squares and you are limited to only 6 unique characters that you must play and you only get 16 of them. In Pokemon you have about 500 characters, plus energy, trainers, supporters, tools and machines and you have to pick 60 that work well together as a team. You have to do math. You have to plan strategies several moves ahead using math. You have to be brilliant.
I've been around a long time and I have found that the in crowd kids might have been all that in school, but in the long run they ended up being the employees of the kids that played games like Pokemon.
Don't ever be embarrassed by who you are and what you do as long as it is legal, ethical and moral - it is right, and so are you.
You play Pokemon. Be proud. You rock.