next time plant them in pots... these don't move all that well when young, so disturbing their roots will often end in death. As for the remaining plants, let them be, and move the other plants around them as needed.

I wasn't anticipating such a high germination rate (no more than 20 seeds) under uncontrolled conditions. The palms are interfering not only with the other plants, but with each other. Unfortunately, the property isn't large enough for more than two of them, so the remainder will have to to be relocated, probably to containers until I can find new homes. The only other option is to destroy the remainder, something I'm loathe to do unless there is no other option.

Sure some people belonging to California Rare Fruit Growers society might be willing to come by and dig them up?

If they don't move well when young, do they ever move well?

Oh, they're moderately easy to move if you take a large enough rootball I've heard. What I DON'T know is how large that IS.

And whether the adjacent trees can be saved.