Avatars that alter our appearance can potentially alter the way we feel about ourselves in VR space.
In one study, researchers gave people the change to practice self-therapy in the VR space.

Given an avatar that resembled themselves closely, the characters would explain their problem to a second avatar, after which they would undergo a perspective switch and "embody" the second avatar as it gave the answer to the question they asked. When the avatar giving the answer looked like a traditional representation of Sigmund Freud, the therapy worked far better than when the answering avatar was another VR copy of the subject, suggesting that in VR space our identities are surprisingly malleable.
That's pretty amazing because I think two scenarios should be in the future if this type of therapies raise, in one hand no matter how the Dr. looks in real life, in the VR treatment he/she will looks as better it should be for the type of treatment the patient might need. The second scenario I think about is where we as patients or even Drs won't care about the looks because somehow we recognize other stimulus instead of the images due evolution.
"We need to think about the fact that the external appearance of avatars can actually change the brain mechanisms involved and, ultimately, affect human behaviour."
"As technology advances, we develop our avatars to have deeper non-verbal communication."
Here the link to the Article: Virtual Reality Makes Avatars More Important Than Ever | Motherboard