[Salvanas]

As Nyo and MMM have said, I think you're mistaking the two.

Immaturity, I find, is about how a person thinks and their actions.

Wanting to learn Kendo, however your father sees it, is not immature, nor can it be mature in any state. It's the same with lego. If you wish to play with lego, and you enjoy it, then it's your choice.

However, if you believe in fairies, and in vampires then I'd call you immature. If you believed in father christmas or the tooth fairy, I'd call you immature. If you believed in God, I'd call you stark raving mad. But not immature.

So, we come to religion. I don't think that those people who preach are immature. No. They only think they're doing you a favor, and that they're doing their duty to their God, however patronizing they may sound to you.

About the issue of holding onto your "inner child", personally, It's down to the person's personality. You'll notice, that mainly when it comes to business or problems, I'm one of the most strict people. Same with taking charge of something. But when I have no need to, then you'll see my inner child. But the truth is, I dislike showing my inner child to people. I prefer people to look at me, and see a mature, uptight, and strict young man with a sense of humour, than a young man who still clings onto his childhood.