Look left and right before you cross the road.

All kids know that, even if they dont follow it. But for a 21 year old to ignore it? Tut tut.

The 21 year old in question better mind it! He would do well to look left and right before crossing the road at various times – for example(hypothetical), when he leaves his house and when he returns. Explaining this hypothetical example further, he should pause at the gate, look left and right, see who are all there see to it that no one is close enough to get hit by him and only then proceed. Also, this will allow his admirers to drool over him other people to ensure their own security