Actually in a VW (or any other of that group) you can set a speed limiter, which is much more practical in a urban environment (and even overland street). The tempomat with distance holder is only practical on an Autobahn (or similar wide street with no bends needing you to reduce speed).
Basically you have control over the speed like normal, but the car stops accelerating at a set speed (limit speed). So you can easily set your limiter at 50, and the car won’t go faster than that. There is an override if you press the gas pedal hard enough though so you can react to situations appropriately.