Our house backed onto my primary school, so occasionally used to climb the back fence. Usually at weekends though, so I could get on the fields with my mates and play footy in the nets, or ride my bike down the big hill (until I fell off and broke my nose)
Secondary school was about 3 miles. Always used to walk, never got a lift. Walking back used to be via the shops, calling into Hamsons (now greggs) for reduced donuts just before they closed at 4pm. Just pissing around walking back up the fields
In year 10, two of my mates (the sort who were 6ft and had a full beard at 15) bought a car off eBay so they used to go to school driving that. I was much happier walking with my cheap donut!