Context: I worry about him because he 's a senior in high school , does n't seem to spend anytime outside of the house with anyone besides my family . He spends his time playing video games in his room . The cat ( who will chomp on the ankles of all others ) loves him . I do n't know what she 'll do when he goes away to school .

Question: Why does the speaker worry about him ?
Options:
0. Because he does n't spend that much time with friends .
1. Because he spends too much time outside of the house .
2. None of the above choices .
3. Because he might not graduate high school .
Answer: 0