I see some bits of white on the wings and some funky feathers coming in on the upper back. Those things combined with the large comb and wattles are white I think it is male. I think within a few weeks it should be clear one way or the other.
There is no way to tell gender in that breed at a very early stage. It's just luck of the draw unless you find sexed pullets available.
These are hatchery birds, so the product will vary. It is possible to see feathered legs on chicks if you look closely. But I am not sure that will have an...
Bantams generally are not docile. They are very active and noisy, and they do not usually lay that many eggs compared to large fowl. So your friend will have to sacrifice some things somewhere to make it work.
Cochins, Silkies and Brahmas can be docile, and Brahmas are good layers for bantams...
It's early in the game. The Legbar type Easter egger is a female, and I see none that look to be males at this point, except the Zombie. It has a large comb for that age.
So far so good. Keep an eye on them for quick growing combs or color developing in the combs. If you end up with 9 pullets and only 1 cockerel, luck is definitely on your side.
They can be tougher because they should have pea combs, which aren't as easy to differentiate as single combs. So you are looking for color and the bulbous look in the combs of cockerels. 6 to 8 weeks is usually enough. Sometimes earlier, sometimes later. Nothing is cast in stone when it combs...
BSLs are variable, and some have a lot of brown. So it could be one.
Partridge Plymouth Rock is my second guess.
It's a wait and see thing to know for sure.
If it is a purebred barred rock then it is likely to be female. Males of this breed will look paler due to being double barred, which means the white barring is wider than the black areas on the feathers. Females are darker.
Also, BR males tend not to get the overwash of color on their yellow...