Why was the life of the slave who was the master's child more difficult? From Chapter 1.

In Chapter 1
of his autobiography,says that many people believed that his owner was also his father.  He says
that this does not matter -- he would still be a slave.

He goes on to say
that slaves who were the children of the master had a harder life.  He says that they were
likely to get picked on by the master's wife because she would be mad at them as evidence that
her husband was sleeping with the slaves.

He also says that such slaves often
get sold because it is too hard for the master to deal with having them
around.