Yes. YES (big yes) I found similarities. Big and little. In my first family I was a little bit of an outlier in my way of thinking (the way I process things, not the way I think) but then, we were all non related and so we were all outliers. There was sameness in our differences, as if that might make any sense. Maybe familiarity is a better word there than sameness.

My brother and I process the world through the same filters. Both very mechanically oriented we settled right into discussion with out having to probe the ground rules first. It was basically the same with my sisters except that they are girls :)

We are leaners. 40% of earth's population is more comfortable leaning on something than standing unsupported. I'm a leaner and so are they. Among a great many other things.