Avatars are how people are displayed inside of LiFe and The Game.

In The Game, it costs money to approve new avatars.

In LiFe, everyone is giving a default school outfit[1].  Money can be used to modify the default outfit or get a new one.  It is a way for people to determine who is wealthy and who is not.  There is currently only one skin tone[2] available for LiFe avatars and only one height[3], as well.