Why are mothers so against circumcision? is there really any basis for this?

Preventative if any: Circ rates run 0-80% depending on cultural, religious& healthcare practices around the world. The only males with uti's i've treated in 3 decades were uncircumcised & often <2mo old. You'll never have a trapped glans(paraphimosis) or cancer of the removed area. In the end, its more cultural than need.I view it similar to piercing ears but with a few potential health benefits.