Are adults who collect toys immature?

I'm sure you've heard observations about toy collectors and scale model makers: "he's a grown-up, but he's still playing with toys!"

I and a number of adult men are toy collectors. We buy and collect things that only little children are expected to love. Thus, toy collectors, and even scale modelers, are thought to be acting like little children and are considered to be morally deficit.

I'm afraid this is not true, however.