I really love the idea of Altean!Lance
especially when paired with BoM-suit-Galra!Keith yes hello sign me the fuck up but I think I prefer him with his normal hair colour rather than white.
I submit a theory to you: "Jedi trainee hair" or anything aside from some variant on "thin single braid on the right side" actually isn't standard or required or anything, it's just how Obi-Wan was wearing his hair that week. (possibly most of it got burned in a mission gone wrong and Qui-Gon cut the singed parts off but left bits of it long, /probably/ accidentally but he won't admit that, and Obi-Wan just ties it back in a nerf tail because he has a weird sense of humor.) (part 2 to follow)