Walking to school (about 1.5 miles) along the Upper Shoreham Road with my friends from about 8 years old, and being allowed to cross the road to play in Buckingham Park for an hour after school.
As kids in the 50's/60's we were given a lot more freedom and were left to our own devices quite a lot, but we made our own amusements and I certainly never felt neglected, in fact I think it gave us a much greater sense of responsibility.
This is probably the biggest difference. When I was growing up, we didn't have a car and none of my friends' families had cars. We walked a lot: I walked to school (I lived in Moulsecoomb and went to Bevendean, so it was a reasonable hike over the Downs). I remember one Sunday playing in a chess match at Woodingdean and six of us walked from Bevendean to Woodingdean school. It's actually not all that far, but if parents sent a group of 10/11 year olds out like that now there would be queries about their parenting abilities.
Shower
You were lucky
Yeah, for the first 12 years of my life, we made do with a weekly bath, but just before I started my paper round, we had a shower installed. Luxury!