Can't speak about the USA but here in south of Spain houses tend to be small, weather good and eating outside relatively affordable so people are used to meet outside.
Most of our gatherings are actually at the beach because for most it is just a short walk from home and there are shops very close that sell super cold beers and drinks so you don't even have to carry a huge cooler.
That’s great. Wish I had a good beach nearby. Closes is about an hour but the water really isn’t fit for swimming anymore since about 10-15 years ago. We have to go three hours to get anywhere reasonable