Hey there,
While I understand the concern you have, I'd like to point out that it's very much possible to enjoy the game as a free player.
From 20th of July last year up until about 1st of December, I was a free player, no spending involved, just fun from the game. That being said, having a game keep me for over a year now, it's no small feat, and I find it genuinely possible to enjoy.
The other situation is when you want to become competetive, because that costs, I won't deny this part.
Just having fun with groupmates in game is completely free and enjoyable nonetheless.
"target demographic" for the game is a very debatable subject to tackle. Most people that play here that I know are either adults, young adults, or old teenagers. It's caused by the popularity of the anime series which is not as heard of anymore, if not counting for the sequel that's currently airing. It makes the predictable demographic much older than that depicted in your initial post.
That all being said, I will have it discussed with our team as a suggestion, thanks for the input :)