Princeton is also a special case because it's a community that has a lot of fights about trees. Cutting down trees is heavily regulated there, you literally have to apply for a permit to cut down a tree (though I believe there are exemptions for emergencies), and the township and community are committed to the aesthetic of shaded roadways throughout. That almost universally (basically everywhere but right downtown, and even a fair amount there) means planting trees between the sidewalk and the curb, which in turn leads to increased damage to sidewalks from tree roots, so maintaining sidewalks becomes more expensive. It also means that sometimes you have to decide between having a flat sidewalk and doing enough damage that winter might kill a tree that's been growing for 30+ years. Those are things that are important to a lot of people living in town.
I've lived next door to Princeton off and on for 20 of the last 30 years, hence the unnecessary knowledge of their social emphasis on trees. I think it's nice. I haven't seen any complaints about disabled access at the township level, and nothing came up in a quick google search.