How many bitcoins do ordinary people have?
We need to know your definition of ordinary people in the first place. I thought you would elaborate on what you meant by ordinary people. Does ordinary people mean non celebrities or or it means low class person?
Would it be a satisfactory quantity if I had 0.1?
0.1 BTC is a very good digital. I know you need to have something much less than 0.1 to be a sat millionaire. A low class someone living in developing countries who has 0.1BTC should be considered good.