Sweet.
So... what were we talking about earlier?
None.
But wait...
Why doesn't masturbating stress the children? They do at the age of 3...
None.
Hell if I know. Could be due to lack of a partner, lack of penetration, any number of things.
Are you talking about a child of 3 years old?! O_O
None.
These are all physical differences, in my opinion, they do not help your argumentation.
Why would having a partner or not change your sexual perception?
None.
Dunno. Though the physical often has a marked effect on the psychological. Can't say why solitary independent masturbation doesn't (seem to) hurt 3-year-olds. But it's quite evident that other forms of sexuality are damaging to children.
None.