I'm from Montevideo, I wouldn't call it "tropical" but yeah, compared to an US city it's absolutely a million times more walkable.

We do have humidity and heat and I don't enjoy it and I use A/C several months a year.

There's a big push for more cycling-centric and more cycling lanes, and the bus infrastructure is obviously a lot better than the US. I don't have a car by choice.

I haven't been to Houston but I have been to Dallas and it was an extremely frustrating experience and it feels like an awful soulless city to me.