I'm sure having brothers helped. Then there are boy toys around, and activities to do together. I had a sister, of course, so we mostly did girly things together.

She did play with a lot of boys, and I think she maintained male friends through to grade 1 or 2, when we moved. I wonder if she would have drifted away from them, as in your experience, if we had stayed?

I always had female friends, often even more girly then me (I only played Barbie when my friends wanted to). I don't think I really made any close male friends until high school, in fact.