San Diego is an especially bad area because of the network of canyons which bring the wilderness deeper into suburban areas. On top of that, you have coastal sage scrub which can burn intensely and also build up significant fuel loads in a few short years. The solution for coastal sage scrub fire management will likely be different than what makes sense for oak and evergreen forests elsewhere in CA.

North Orange county, too. Up in the Chino Hills and Anaheim Hills area. Family in Anaheim Hills has been evacuated for fires at least 4 times in the last decade and a half.