For background, we live in Australia where it's going to hit 40 degrees today (100f)
And I can't drive...we walk to school which is about a mile away. DD is 9.
I am learning to drive but in the meantime, on hot days if DH can get home early, he does so that he can pick DD up...our older DD is away.
Sometimes one of DD's classmates' parents will see us and pick us up or offer us a lift but there's no knowing because all of the women I know at school work part time and have varying shifts.
We walked home once last year on a 44 degree day and I actually thought I was going to die....I was quite ill and it felt terrible to walk in that heat.