What reason does earl of rosslyn give for arguing against legislation that would protect child workers

Earl of Rosslyn felt that parents are responsible for the protection, healthcare and safety for their children and thus he did not see any justification in the legislation that could protect the children.

Explanation:

He stated that there is no other law or person who can protect the children than their parents. Parents are the creator and supporters of their children and thus in this regard there is no need to see who can safeguard the children better than the parents.