Do you think this is doable on foot?

Pick up/drop off which includes 2.5 year old, 2 x 3 year olds and 1 schoolie?

Would put 2.5 year old in double buggy with the not so better walker.

Schoolie can walk no problem but that leaves me with a 3 year old who may to decide to not walk and want carrying?!

Anyone had/have this scenario...any tips/advice?