Sharon, I dont think there is any one-size-fits-all answer to that question. Any attempt to paint a simplification of that question is bound to fail. The human brain is the single most complicated thing in the yet discovered universe. Each person here comes with their own quite unique place and complications and perspective and problems.
Perhaps you might be better served spending a little time getting to know some of the beautiful people here and the rich variety of lives from which they emanate before jumping to any forgone conclusions. If you do, you will learn what a diverse bunch we really are.
Said with only kindness intended, honey. I know it can be tough if you are just beginning to get a handle on this little world, because in the start we can only view things through the lens of our own circumstances. Stick around. There are a lot of warm and kind people here who are more than willing to help you with understanding yours.