That outfit gives me late 90s (Afro) hip hop festival/club vibes. I don’t think that’s the impression she wanted to give though. If that was actually her thing, I wouldn’t shark on the outfit but we all know it’s not. It’s yet another failed attempts to look faux scandi, relaxed but sophisticated.
RE the birthday: of course it’s fine to congratulate yourself as parents. To be proud of yourself for yet another year. It’s also fine to reminisce about the day or to get the mother some flowers or similar. BUT all this would surely happen between adults and would not be the focus of the day. Maybe there are cultures where it’s different, though I never heard about that, and Lili clearly didn’t think so till a couple of years ago. If you decide to do something for your mother on your birthday that’s lovely, but the decision was yours. Let your child decide if she wants to follow. I think it’s way more important to teach children that it’s nice to make a bit of a fuss about birthdays and the birthday person. Decorate, bake a cake….to put someone else first and be happy for them instead of needing the same attention as well.