Buying your teenager a sex toy....

So basically one of my frineds came to me and said her 15 yr old daughter asked her to buy her a vibrator. She came to me and said she said no because she felt like she was "introducing her to sex and she was too young" and asked my opinion. I told her her she should of bought her one because if she asked for one shes alr wondering about it. I told her "at least you know she pleasing herself and not going out looking for a guy to do it" long story short we got into an argument and now shes mad at me. I feel like at that age guys are watching porn and doing things like that so why not girls? What do you guys think?