I think it makes children to grow up thinking rain is bad. I used to walk for miles in cyclone rain, cross rivulets with strong water flow - just to attend school. I can't think why someone want to raise their children not exposed to rain.

I don't know anything about cyclone rain, but nobody in Ireland needs to be taught that the endless dark grey days of winter and their accompanying cold wind-driven rain are unpleasant

The notion that big business is conspiring to keep children from playing in the rain because of… reasons… might be my new favorite conspiracy. I’m bought in.

You are linking a nursery rhyme which is older than the USA to "Modern Upbringing".

That's an odd example.