if climate change brought “cold” summers to LA, would the culture change?

LA today (63° F) feels as cold as an SF summer – where it’s not much colder (58°F).

if temperature impacts culture (amount of outdoor seating at restaurants, use of parks, fashion, average caloric value of typical lunch), how long would it take for the culture of los angeles to change given a 5° F degree cooling over 25 years?

we have computers, software and data to calculate that, right?