I am 58 years old and have two fixed gear bikes. I own several bicycles of all types gears, no gears, big tires, little tires. I love switching around.
Here are my two fixed gears bicycles.
Samson Illusion 2011 mix of Dura Ace and Nitto parts. Gearing Fixed 49 x 16.
1956 Riva Sport French Bicycle with Vitus Tubing and Nervex Lugs. Velocity Hubs laced to Dyad Rims and Velo Orange Parts - Gearing fixed 44 x 14