Improvised city type
Nothing decided, in cities, with people. What today is depends on how you wake up.
In detail
ICGYou decide on arrival. Walk near the hotel, go into whatever looks decent — that's the method. With no plan there's no disappointment either, because nothing was expected.
Cities suit this because they're dense enough to improvise in. Change your mind and an alternative is next door; a bad call costs almost nothing.
The weakness is that whoever came along may tire of it. When decisions keep getting deferred, someone has to make them, and that job always falls on the same person. Fixing one thing per day fixes most of it.
Who fits
Works well with
Walks alone — To plan, in nature, alone. The route is set, and then you walk it without talking.
Clashes with
Solo planner — To plan, in cities, alone. There is an itinerary, and it was negotiated with nobody.