Ascalaphus wrote:
At level 1 you pick an Ancestry (such as human), and from your Ancestry, you pick one heritage and one ancestry feat.
Heritages are basically stuff you were born with, or that you had to spend your whole life prior to becoming an adventurer to learn. They can be things like being a subspecies of goblin, like the tailed monkey goblins or the blue-skinned frostfur goblins.
Ancestry Feats are things you learn that are special for your Ancestry. You can learn them later on in your career; a Heritage is something you could only get at level 1.
For humans, "Half-Elf" and "Versatile" are both heritages, so you can have only one of them.
Normally, at level 1, you don't get any General feats, but if you happened to take Versatile Heritage, you would get one.
Normal humans only get to learn Human ancestry feats. The main benefit of half-elves is that you also get to choose from Elf (and Half-Elf) ancestry feats.
So your choice is basically: full human to get more feats, or half-elf to get more choice.
Thank you so much, Ascalaphus, for such a clear explanation!