[itsybitsycoder]

Lots of cities plant decorative fruit trees, and more rural area often has feral fruit. You're allowed to harvest fruit on public property (at least where I live). It's actually better if you do, the sidewalks can get nasty if the fruit is left to fall and rot.

https://fallingfruit.org/

In the neighborhood around my work we have cherries, plums, apples, blackberries and raspberries. By my house there's more cherries, blackberries, raspberries, blueberries. There's tons of it everywhere in the summer and I rarely see anyone picking it.

Won't do you much good out of season, though.