I guess it's a hard balance between protecting kids from poor parenting and freedom for good parents like yourself.
Or rather, how does one treat the sale of adult toys.
Living in civilization is all about giving up our freedom to do certain things in exchange for the protection and comfort that society offers.
Living in a civilization is about joining a social contract to not infringe on each others rights. (theft, rape, murder, etc infringe on the victims rights, where as buying Bucky Balls does not affect anyone but the purchaser)