My only sibling got married - big wedding, lots of bridesmaids and ushers etc. Photographer took lots of photos for a long time. There was one photo taken of all the guests and that's the only one I was invited to be in.
I just feel that in the future, all these friends may not still be around. He might look back at those photos - it'll be a shame that I wasn't included. (Neither was my husband or 2 children, one of whom was a flower girl). Our dad died many years ago so it was just us and mum for a while. (Mum was included).
FWIW my wedding photos were mainly of immediate family including siblings and partners.