Oh, man...

I've lived in 4 different countries by now, visited even more countries than that and come from a very touristic country.

I can guaranteed you that you're not "experiencing other cultures" or "expanding your world view" by being a tourist somewhere - you have to actually live there for years in the way the locals do (rent or buy your own house, work there, do you own shopping, make your own food, have a car and/or month public transport pass, pay taxes, etc) and at the very least learn the local language to the point of following their news to start experiencing their culture and expanding your world view.

Tourists don't have to do even a fraction of the things locals have to do in their day to day, have zero of the worries people living there have, and pretty much only get to know local people whose work is catering to tourists and who thus just put on an act for the tourists.

Shit man, I've lived for over a decade in a foreign country and almost a decade in another and even then there are tons of local cultural elements I never experienced (and some of them never could have experienced since my familiy wasn't from there and I did not grow up there).

As for "expanding your world view", IMHO you get more of that from being good friends with somebody from a different country were you live than from merelly meeting people whilst travelling abroad, especially if you're going to a place with the idea that you live in a better (in the sense of superior) place than they do (which in my experience is a common thing with American and British tourists) - in other words having the modern day version of the "enlightned white man amongst the savages" spirit.

Try going to live in another country for a year or more and you'll see just how deluded is that idea that being a tourist is "experiencing other cultures".

A strong tourism industry in a small city does displace everything else. It's one version of the Dutch disease that actually happens even when the government doesn't actively cause it.