Q.Fruiting Avocado Trees
I am growing a few avocado trees from seeds, these original avocados have come from a very successful avocado tree in a friends backyard – not from the supermarket. I was reading about grafting and how some seedlings dont fruit as the original tree has been treated and modified for specific qualities, i am wondering if grafting will be necessary with an already organic avocado seedling?
thank you

It is possible that if you purchased the seeds, they are already suitable for a fruiting plant. Still it takes two to produce fruits. Male and female flowers bloom on separate trees.
Now, when you graft, you can be sure that the fruit you get will be just like the branch you grafted. Alternatively you can graft a male branch on a female tree so it can be self fertile. You will just have to ensure any grafted branches receive much attention so they do not dampen off.
Here is an article that will help:https://www.gardeningknowhow.com/edible/fruits/avocado/avocado-tree-growing.htm