Probably the top reason someone would fix app instead of volunteering physically, is regular volunteering requires working on someone else's schedule. For exam

Probably the top reason someone would fix app instead of volunteering physically, is regular volunteering requires working on someone else's schedule. For example if you are on a volunteer ambulance squat, then you got some hours assigned to you, and you have to be available at that time. (Plus you are in contact with people who may have diseases and exposing yourself and loved ones to them, but that's not common to all volunteering.) Making a patch to open source can be done on your own time and from your own home. A much smaller issue, is the issue of familiarity. Most of us know how to change and check in code. But if you'd like to help a child orphanage, it requires stepping out of comfort zone - or at least present knowledge zone. And final issue off the top of my head could just be awareness. It's easy to find a request for help in open source projects. There isn't a bug list for helping around community ... that I know of.