At 46 I am still loving my fixed gear and SS bicycles and have a 1975 Bridgestone Kabuki track bike in the works... as soon as I get the new wheels built it should come together pretty quickly and will rig it as an SS/ FG with dual brakes as the frame was drilled for both.
It is a slightly heavier frame and should lend itself to some hard sprinting so should be a good urban assault bike... it will join the ranks of my 1951 CCM fg, 1955 Raleigh fg, and 1975 Peugeot coaster bike.
If I like the ride will refinish the frame as it is a tad scruffy looking but structurally fine.