Actually, there is a more scientific reason why there are more men into adult baby/diaper things than women, and yes, there are way more men into this than women.
Without getting too technical about things, putting it in laymans terms, here's the deal.
Men in our society today are to be strong, macho, or whatever you want to call it. Women traditionally take the more submissive role. This is the way society says things should be. I am by no means saying this is the way things have to be, should be, or are 100 percent of the time.
Think about it though, a man who doesn't fit the profile of what a man should be like according to society, a man who is sensitive, submissive in public or what have you is considered weak, a "pussy", whipped, and other such things.
A woman who also doesn't fit what society feels she should be as in submissive, caring, motherly, "nurse-like" is by societies standards considered a "hard nosed bitch" and other terms along these lines.
We also all know that for the most part men marry women that remind them of their mothers. Most men want a woman to take care of them, nurse them so to speak. They want us to baby them as it were.
Most women on here will tell you if they have had any relationship for any length of time with a man that when men are sick with a cold they might as well be dying. This isn't an insult or a crack by any means, just what seems to be more often true than not. Women on the other hand often times could be dying and still are going to work, taking care of the kids etc.
This isn't quite coming out the way I have intended. Usually men are in control of the family group outside in public, and once behind closed doors, most women rule the roost.
Men have a basic need to be cared for, babied and pampered, no pun intended. They see us women as nurses, care takers, and mothers, whether it be to them or their children. Men get tired of being in charge all the time and is the reason for the role reversal. Likewise women get tired of being seen as the weaker sex and is often why we like to be in total control behind closed doors.
I hope this makes sense. I am not very articulate this morning, sorry. I guess what it all boils down to is domination and submission, what roles are expected out of us per society standards, and what our basic needs and wants are when alone out of public eye and or scrutiny.