In-laws celebrate your birthday?

Curious. Any fellow mums here whose in-laws don't celebrate your birthday? I have to attend all my FIL, MIL, SIL birthday celebrations and chip in for their birthday meal treats at buffets and restaurants. But when it comes to mine, there isnt even anything. Hahaha. I don't mind la, I guess I'm just an outsider. Just wondering if anyone else is the same or isit just our family.