1. Sorry about your difficulty. Really.<quoted text>
If there sre millions of valid reasons I would love to hear them. If the reason isn't that it causes harm of some sort I have difficulty finding any other reasons.
When it comes down to it burden of proof is on those who claim it does cause harm or whatever other reasons they have, if it's unprovable either way then you have no basis for denying it to people. Mere speculation is not a good enough reason.
2 No it's not.