Yes, being educated is definitely an advantage. But having said that, I've met so many people in life who haven't done very well at school but who are still really bright.
I learned to stand up for myself at school where I was never too popular.
Philately is normally a boys' hobby but for some reason it was in vogue at my junior school. Between the ages of eight and ten I collected avidly. I'd pore over my Stanley Gibbons book, obsessively checking my collection's value. I always hoped I'd stumble across a really valuable one, a Penny Black or an Inverted Jenny, but it wasn't to be.