In a mature American Persimmon (say about 25 x 35), how many feet from the ground do the branches begin?

I found pics online that show a very much Oak Tree-like growth behavior with at least 6' before the first limb.

However, I've seen more scrubbier forms where the lower branches nearly rest on the ground.

In an open field where maybe just one side get's shadowed by an adjacent tree, how many feet from the ground should the first limb be about?

Thanks,

Steve