Riding a fixed gear can add a new enjoyable aspect to one's riding and one does not have to go and buy some brakeless track bike as many kids do... converting a road bike into a fixed gear can make for a bone simple, low maintenance, and really enjoyable bicycle. 60 years ago many a road bike was sold as a fixed gear model as the only other options were to run an internal gear hub or a coaster model... derailleur gears were in their infancy and were not widely used until the late 1950's.
I am only 47 and have been riding fixed gear bicycles for the past 5 years and feel that as long as I can ride I will always have a fixed gear bicycle... I currently have three of them.
This is a 1976 Peugeot with a fixed conversion, gearing is low and it runs a single front brake.
1951 CCM that was converted from a coaster to a fixed drive... it is so plush and smooth.
1955 Raleigh Lenton that was sold as a fixed gear model, it runs front and rear brakes and could be set up with a single speed freewheel but runs two fixed cogs.