Having worked very closely with numerous toddler and preschool children continuously from 2-6 and still observing many others doing this:

The base state of the child is absolutely evolutionary (at a population level): male children are less responsible/compliant and female children are more responsible/compliant from the outset.

This makes girls easy to (even accidentally) make responsible.

Teachers and parents generally easily spend 10x to 100x the effort trying to make boys responsible but do not succeed at nearly the same rates by the same ages. Girls learn faster.