Are these issues?

I am hoping someone can help me. My family (me, DH, bio DDs 15 &13) are vegetarians, will this turn off BPs? Also, we don't have a "set" religion. My side of the family is Christian, DHs is Jewish and our family practices the Buddhist philosophies. We do celebrate Christmas, Easter and Hannukah with the extended families though as well as in our home. Is this a potential issue? If so how do we handle these?