How To Fix Genital Acne Should Parents Be Allowed To Perform Cosmetic Surgery On Children Without Their Consent?

Should parents be allowed to perform cosmetic surgery on children without their consent? - how to fix genital acne

I mean, a varitey methods:
1) Male circumcision
2) female circumcision / female genital mutilation
3) The "fixation" of intersex infants
4) girls corset binding of feet, or --

To a lesser extent:
5) Piercing and hypothetically, tattoos
6) require the use of sunbeds

Ideas? These are some acceptable forms of body modification, but not in others? Where to draw the line?