It’s not strange to me. A lot of conservative people I knew growing up would think this is great.
Having a job is a moral obligation and making kids work is good for them. It’s what the Bible says: spare the rod, spoil the child.
Same goes with minimum wages laws. They are oppressive to businesses and make them pay people more than they are worth.
Anything that gets in the way of people’s freedom to do as they please (including exploiting others) is bad.
They think that the market will prevent abuses because people can just walk away and find a less exploitive job. It’s your responsibility to not be exploited.