Giving the various bandit groups tatoos or some other indentifying mark and having the player remove that could work.
Because the bandits have to have /some/ method of recognising each other, there's about six thousand of them, they need to know who to actually rob.
I bet Skyrim's economy is actually driven by an elaborate system of different bandit clans robbing each other. Rovin'omics.
Yeah, bandits are not known for their respect and trust for their bandit fellas. Members in a bandit clan work together (which is still for personal gain) but that's all. Is there an Alliance of Free Cooperative Bandits or something like that I don't know?
Eh, you can run from Riften to Solitude and amass about 100 bandits behind you, I think they're unionised.
A guy running around in expensive armor, wielding an expensive weapon. I think that should attract more attention than fur wielding bandits. If they kill you, I'm sure there will be a big fight until there is a last man standing to get the loot
If your character is female, she won't wear a lot of armor though. It is a known fact that the less armor a woman wears and exposes more skin, more protection they will get. All these fantasy or medieval age videogames, movies and animes can't be wrong.