While I'll agree that all seedlings won't produce the same as the parent, sometimes you get lucky. My avocado (Pinkerton) was grown from a seed I bought from a farm stand that named varieties, and it came true to the parent. I've had good years where I've gotten up to 100 fruit from it. All avocados don't need cross pollination. Depends on the type. Unfortunately, since it is in too small a space, I have to have it heavily pruned every other year, which, along with our weather, has cut production drastically. I mention our weather because, like washing the car, just when it starts to bloom we get a heavy storm that knocks off most of the blossoms.