Growing shoes / shoes

As we grow from childhood, we buy lots of new shoes to wear.
However, the reality is that the children in the 3rd world don't even shoes to put on right now.
If they are living in unreasonable labor or dirty environment, they would be exposed to lots of diseases.
If shoes that can be worn even though children's feet are getting bigger are presented to the children living under this environment, they must be the essentials for the children.