In high school I used to message girls from a facebook account I made for my dog.
Why would you send them messages from your dog's account?
I was only fourteen, it seemed like a fun idea back then.
It is understandable that you would do silly things when you were young. But, it is rude to send unsolicited message to girls. While it can be fun to remember your foolish youth, you should learn from it and not do that anymore now that you're older.
Maybe, but I think we should have the right to do what we think is fun and want to do.
I can understand needing that freedom, but it can be rude to send people unsolicited messages on the internet. You should learn from your mistakes in the past. You should try being yourself and not hide behind another account.