Yep true there are tracks with little run off space another track in the UK that is fairly tight for room Clay pidgeon first cornor is leathal have a pic to show
ok for one hire karts do 30 mph max maybe 35 outdoor tracks with long run off space and there would be no wall as such at an competition track but I can see your point as you would be thrown radically forward,but I'd rather be out of the kart than in the kart during a midflip