It is, without a doubt a function of size of the child but,......
Times have changed, there's lots of lawyers with nothing to do.
When it isn't your kid, you aren't parent and child. You are the future defendant and plaintiff.
When it is your kid, now you have to worry about child endangerment.
R1200RT (R1100RT gone)
Don't be the guy who needs to pee on the fence to figure out that it's electrified.