Firstly, why specify 'erect penis' as though that's where the line is crossed? Does the question only apply to parents of girls, since they're less likely to ha

Firstly, why specify 'erect penis' as though that's where the line is crossed? Does the question only apply to parents of girls, since they're less likely to have seen a penis before? But yeah, I wouldn't mind all that much; it would raise a red flag for sure, given that many grooming operations work by starting out as raising children's curiosity, but I do not see any inherent issue with my child seeing a penis (erect or not!).