That's a lot of helmets. Some of it plays into age guilt, where instead of being a mom at 22, maybe you're a mom at 38. You've waited a long time for this and, by golly, you're going to do everything right. You also have more money at 38 than you did at 22. So sometimes there's a tendency for older parents to just overdo it.
Mothers are the main targets.
Just look at the packaging of any babyproofing product box. Inevitably there is a smiling mom with an inquisitive toddler at her side who is reaching his hand toward the open flame of the stove. No, she looks bemused, peaceful even. She doesn't have to worry about her little peanut pulling down a pot of boiling pasta water on his head. It can drive you insane to think of all the ways that your children could be hurt once they start moving around the house by themselves.