system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come tornadoes never touch down in big cities, and if one did, how bad would the destruction be?

I've lived near a larger city my whole life and we do get some warnings but they always touch down in the smaller towns, what would be the destruction power of a tornado that went through a city?

EDIT: Well obviously I'm wrong about it never touching down in bigger cities, but is it any less likely that they would touch down near/ on them?    
EDIT2: Thank you all for your answers, I now realize I am an idiot for not hearing about those that actually hit cities.
gpt
Tornadoes do hit cities, but most tornadoes hit in the Midwest (OK, KS, etc.) There are few large cities in those areas compared to the east and west coasts. In addition, tornadoes are prone to form in open spaces as they require certain wind and temperature measurements that often occur in those open spaces. Think about how rare tornadoes are (theya re rare, at least damaging ones) and the relatively small space cities take up compared to the entire countryside in the midwest.