I wonder how parents can counter manipulation from unsuitable men.
I think a key factor is being best friends with your child, and teaching them how to see through pick-up tactics. In addition, boosting their self-esteem so high, that a few words and trinkets don't sway them.
If you look at groomers and even grooming gangs, they target girls from certain backgrounds, for instance, girls in orphanages, girls with no male relatives etc. Also, girls with daddy issues, tend to seek love in the wrong places.
There are parents that never teach their kids about dating, and then they act surprised later.