Growing up in the countryside, basically no kid was driven to elementary school, except maybe some first graders early on. You either walk, come by bicycle or take a bus.
I wouldn't call 8:00 "very early". Elementary school started 7:25 for me, "Gymnasium" 7:20. Didn't really have a problem with it, same with my classmates. If you keep a decent sleeping schedule, don't play games on some device right before bed or laze about all day, it's a non-issue under normal circumstances.