Judging a mom

I am trying really hard to not be judgmental towards mothers because I am not one. But my brother and his gf asked me to watch my niece tomorrow from 9am until 6pm while my brother takes his gf to a Mother's Day brunch where there are free drinks. After that they didn't tell me what they were doing but I'm guessing either a bar or wineries all day while I have their baby on Mother's Day! Shouldn't you go to a Mother's Day breakfast with your mother or daughter?! 🙄 Mind you, I always watch their kid and my parents watch her nonstop as well. I guess I'll be a mother tomorrow...Oh, and my niece is going to be 2 next month and she's a perfect angel! Easiest baby ever.