That's where I usually find trails.
I live in LA sort of near hollywood and I find it hard to find good road rides starting from my house just because so many streets are insane w/ traffic, plus there's few good stretches of road to get moving on. The few thoroughfares there are, where you could go for a while without running into lights or stops, are downright dangerous imo. That's living in sort of the main core of LA. If you live in the valley it seems things are better for road riding.
MTBing there are trails sort of in town in the santa monica mountains. They're close but you really can't ride to them unless you live real close to them, which is unlikely cuz them neighborhoods are for rich people. Further away, but not much more difficult to reach because they're reached by the freeway and are in less populated areas, there's tons of biking. Within 1/2 hour drive- 1/2 hour with traffic being great, an hour is more likely- there's lots of biking in just about any direction. Really good stuff, too.
So depending on where you live road biking can be alright or sucky, and there's mtb to be found but you need to drive to it pretty much exclusively.
fun facts: Psychopaths
have trouble understanding abstract concepts.
compared with their more competent peers, will dramatically overestimate their ability and performance relative to objective criteria."