There is the concept of "families of origin", meaning you, your sibs, your parents and when we got married in the church, we attended something pre-maritally that talked about this and it's always stuck with me.
I see so much of what I do as being very influenced by how I was raised, from the meals I cook to the outings I take LO on, household balance, etc. and I see the same in DH.
One example, my parents threw modest birthday parties for us (bowling alley, roller skating, or public park) with a cake, a few decorations, gifts, and our friends and family. In DH's family, they got one present (usually something they needed) and got to pick the dinner that night. They might've also had dessert.
We had a party for LO's first birthday, modest, but fun, and had a family day for his second, but both times, it was a compromise!
Do you see a lot of influence from your families of origin?