Some adopt a specific view of existence/existing after study, consideration and personal (perceived) insight. Some through necessity to gain advantage or to avoid disadvantage. Most because of what someone wrote on a piece of paper in conjunction with other bits of bureaucratic admin associated with their birth. Are all of our belief structures (as opposed to all the other things we can basically kick around the backyard and try to convince the dog to actually fetch) really just the belief in that whoever filled in that ever so fateful form, was right? I've already got some tar and feathers so just bring yer pitchforks, you can fit so many marshmallows on them tines for toasting.