The right a baby should have to not have a part of it's body cut off for a purely aesthetic purpose out weighs what is hip in any culture.
You're acting like the baby is gonna have to see a therapist for having a rudimentary procedure.
Nobody remembers getting circumcised.
And you're wrong because the baby does not have that right in my country due to our culture.
Edit: Also if you wait until the the child is capable of making the decision for themselves, it's already too late to be practical.