How can you generalize like this and say one is better than the other?

For me, religion sucks. But religion works for many people. For some, volunteering may be the best option and for some, sports. There is no one size fits all, one is better than the other solution.

People might decide to do more than one, depending on their mood (why not volunteering and sports?) - I don't think problems like loneliness has a one size fits all solution