Why do people get depressed? Break up, lost loved ones, lose a job etc. etc. Why don't they prescribe these people to have some voluntary work at a local charit

Why do people get depressed? Break up, lost loved ones, lose a job etc. etc. Why don't they prescribe these people to have some voluntary work at a local charity and take a break from life's stress and enjoy the joy of giving? etc. r understand or fix the reason they got depressed in the first place? Or simply some consoling or support. Why does everything need a chemical cure that messes up the brains natural balance and harmony? When you give and bond with people, your body releases oxytocin. When you do cold showers, your body releases seretonin. When you laugh or meditate, your body releases endorphin. I can go on and on. All of which helps bring back balance to the mood and get people rid of depression. You create a chemical/toxic & selfish society,where everything MUST be fixed through chemical drugs backed by greed of pharma companies that does half-dashed studies, you are doing humanity endless harm.