It's bad to not support your family member's goals.
Steven's sister is telling him about her dream of becoming a dancer.
Steven wants to go to sleep.
Steven takes a few minutes to encourage his sister about her dream, telling her she can definitely succeed if she tries, before heading to bed.
Steven doesn't respond to his sister's conversation and goes straight to bed.
Steven's sister feels that he is a really supportive person that she can rely on.
Steven's sister feels that he doesn't care about her life at all.