I disagree wholeheartedly, people may have issues, but everyone is an individual who deals with things and processes situations in different ways, and sometimes people do not cope very well.
People may have it hard, but if you have never suffered from depression, not just having a bad day or feeling fed up, you cannot possibly comprehend how horrible it is to wake up each morning and force yourself to get out of bed after going asleep wishing you would never wake up. People who have problems, have problems. People with depression or anxiety have problems which are governered by one massive problem.
You are making it sound like he should be ashamed for asking, he should not be. Sure, it is not a healthy question to ask, but he is not alone in thinking it.
Living for others is easy, it is living for yourself which is the hardest part and the most necessary. Learning to love and respect yourself, know yourself, what you want, and where to go, and generally making yourself happy- love, happiness; it should all start from the individual about themselves, ignoring the self and seeking gratification from others is useless if you cannot have those feelings already inside of you.