The parents may feel that slavery is okay to a certain extent because there parents raised them that way and they May have grandparents that owned some "slaves." Now children's attitudes might be different because nowadays you encounter lots of nationalities and races in the USA and were starting to adapt and open up to them wanting to know more about what they do or why they do something different than you might do.
C:a man who wants to settle down with a family.
Answer: Their for the first one and They're for the second one.
Basically, you're good to go, meaning, it's okay to proceed without restriction.
