
Originally Posted by
LevesqueIsKing
When you first got your wii, you went through a series of settings. One of those settings was if you wanted your mii's to travel. I am pretty sure that this is your problem, and that you selected no. If this is the case, than you will need to go to the mii channel, then click on mii parade and once in the mii parade click the travel button and select yes. Traveling allows miis to gather in your parade and for your miis to go to other's parades. After you let your miis travel, edit one of your miis and check and see if it allows you to select 'mingle' now, hopefully it will.
Rep if info is helpful.