Why do fathers get excited when sons date but not for daughters?

I'm 25 and my dad still doesn't want me to date even though I've been on my own since I was 18, and I've been introducing boyfriends since I was about 13. I understood it when I was 13, even if it was annoying but 25? My dad even used to joke when I was a little girl that I wouldn't date until I was25. Well, here I am 25 and my dad still does the scary dad thing when he meets a new boyfriend and then I overhear him talking to my mom about how he doesn't want me dating. Him and my mom were married with three kids by my age. He's always been proud of my brothers for their dates. My older brother is getting married next month, and my dad has never been so happy.

When will he be happy for me and stop with the double standard?
Why do fathers get excited when sons date but not for daughters?
Post Opinion