I used to be a bike messenger in the '70s and I rode a "fix" which is now apparently called a "fixie".
At that time I sold my road bike, a Holdsworth I built up from a frameset I bought in London to finance a burgeoning collection of old track bikes including Legnano, Frejus, and Paramount one of which was skip tooth equipped. All were stolen My next bike was a Proteus track bike which I commuted on until I had kids. I thought I was being adult when I sold the Proteus to a messenger and bought a MTB. That was stolen and replaced with something similar.
I had a back injury at about 40 and was told to stop riding. Forever. I bought a fully suspended MTB.
I never enjoyed the mountain bikes as much or rode as often.
Now my ex has all my old bikes. Look for them on CL. So I went to a fairly LBS and saw the 24 speed Jamis and it fit perfectly and I hadn't ridden a road bike in decades and the price was right.
About a month later, same shop can't recall what I was shopping for and a woman came in with the a Robin Hood ladies 3-speed to see what she could get for it. $22 and I rode it home. It was trashed. Now it wears 700x28c on track wheels and the Jamis gathers dust. I will post a pic if the sun appears.
Is foot retension required for jockeying? I haven't managed it on Robin though I jockeyed all day when I was a messenger.