Thanks for the link. Interesting watch, like some author by the same
guy. Omafiets are quite popular in Germany as well, I have
occasionally ridden one.
I doubt that a position so upright is comfortable for more than 10
km. Also, I never had trouble with assessing a busy traffic situation
with a more "aero" position. We are not talking about deep drop bars
for an hour record here.
Frame locks (easy to break), coaster brakes (weak, annoying at traffic
lights), sidewall dynamos (fail in rain or snow) and Dunlop valves
(easily stolen) are crappy.
Many of the points made in the video apply to folding bikes as well:
Easy mounting due to the low frame height, mud guards, racks, kick
stands, bells, internal hubs, hub dynamos, low maintenance.
But good folding bikes offer additional benefits: They are suited for
travelling/longer distances and they can be brought by almost any
means of other transportation (small car, bus, tram, train), even
during rush hours. And you can take them with you, so they do not get
stolen.
While the wheels on a Brompton might be sitting low enough, I cannot
comment whether it is suited for a skirt or a dress. (-;
Best regards
Axel