Why do Catholics have communion each week while (some?) Protestants have it once a month?
Catholics are required to attend mass once a week, usually on Sunday because that is the day in which God rested after the seven days of creation. Protestants don’t have Mass anyway, their services are simply called ‘church services’. They have Communion about once a month, and it’s symbolic, doesn’t involve transubstantiation like in Catholic Mass. Catholics have communion at every mass, which can be daily. They believe that the bread and wine are transubstantiated into the Body and Blood of Christ, while Protestants treat communion as a commemoration only.