Lifting weights is safe for kids, provided they are mature enough to follow instructions and use proper technique
hope it helped
To men, there are acne and breast development, to others it could be life-threatening, like liver cancer or heart attacks.
I'm pretty sure that would be false and would also go against some of the points of what your talking about. Not to mention it's rude to do so. I'm pretty sure anyways.
Hope that helps.