A bit tangential, but relevant perhaps.
A recently came across a video on YouTube about why Amsterdammers don’t use helmets. One of the key points made was that general utility riding was slowish, respectful and on what we call “ Dutch” bikes.
One of the very sensible people they talked to said that cyclists who ride racing- type bikes in Lycra do it out of town, and ride slowly once in towns. As he said, one of these cyclists who lives in Amsterdam rides home, changes, and gets on his grannies old bike to meet their mates for a coffee.
From what I see in London, the culture is very different within some riders.
This affects the design of course, but particularly usage, if people who might ride feel intimidated by “commuter racers”.