It wouldn't, you'd need to change the food industry for that to happen.
There's definitely amenities that can be done to make LA walkable regardless, but I understand that nature did not intent for this settlement to be human friendly.
However I don't really like walking everywhere or taking public transportation so LA is the perfect city for me because it has many municipal places I can park my car and then walk around.
Let me explain LA to you since you clearly don't understand it.
LA is a combination of many smaller cities. Each one, on it's own is a small micro city with everything you would expect. You can live in Santa Monica, Pasadena, Burbank, Sherman oaks, West Hollywood, Ktown, Beverly Hills, Sawtelle, etc. each one of those places has a very vibrant and walkable area with cute shops and restaurants and easy public transportation. If you live in those places you don't necessarily need a car.
The problem with LA is that you might want to go from one of these places to another and the walk would take a very long time because LA county is bigger than Delaware and Rhode Island. But you can walk it if you want.
LA is currently the only city in North America building new subway lines. And is doing so rapidly.
You and I have different definitions of walkable.
That is demonstrably false. As I type this comment I can hear the sounds of excavators digging out a station for a new subway line in Toronto.
> However I don't really like walking everywhere
Hint: If you don't like walking, then your city is not walkable. In actually walkable places, everyone likes to walk because it's so much better.
Downtown is walkable. Hollywood is walkable. Echo Park is walkable. Pasadena is walkable. Santa Monica is walkable. Long Beach is walkable. Culver City is walkable. Bevery Hills is walkable. Glendale is walkable. Burbank is walkable.
In the same way that Everest is walkable. None are walkable cities by any reasonable definition.
It's stupid that I even have to point out a few things. Like that I was born in Europe, have been to Germany and Japan, and lived near NYC for a time so I probably know better than some European about my own city.
At least my definition of walkable does not mean "you can technically walk there" it means "if you live here you will not want nor need to use your car"
Santa Monica and downtown are now directly linked with the yellow line.
But LA has a great many neighborhoods that are very walkable, and it has public transportation connecting all those walkable neighborhoods.
And in response to your spurious claims about Santa Monica: the entirety of the city of Santa Monica is just as walkable as the cities of London and Paris, and definitely more walkable than the outlying neighborhoods like Versailles.
Downtown Los Angeles is also very walkable, and there are tourists who make that walk every day.
Making a walkable LA would mean making a much smaller urban area (or series of much smaller) with much higher population density and ideally rewilding most of the LA metro area. It is functionally impossible in the current political environment.
The walkability of cities is linked to increased happiness in people, so there actually is merit to saying that it is objectively good. Walkability encourages you to literally walk past large amounts of people, local businesses and plenty of outdoor activities that you have the opportunity to take part in.