There's a classic situation where folding AA is easy... of course, we'll rarely ever be in such a position, but it COULD happen someday.
The situation to fold AA preflop is the following: we're at the final table of a big tournament, and we have the second largest chip stack at the table. All the other players have only a small amount of chips left in their stacks.
The easy fold for AA happens when there's a raise by a short stack, and then the chipleader shoves all-in. It's our turn to play, and there are 5 or 6 short stacks behind us who still have cards... what is our play? Obviously... we FOLD.
This is called an ICM fold, we're folding AA here because we could lose the hand to the chipleader (AA only has 80%
equity against 2 random cards, so we'll lose the hand about 20% of the time), and if we lose the hand and get knocked out in 7th or 8th place when we had the second largest chip stack at the entire table... well this is what some would call an "ICM disaster". LOL Don't make ICM mistakes!!
ICM stands for "Independent Chip Model" and it's a way to mathematically analyze the situations that happen at the end of the tournament like the situation I described above. ICM attempts to show us the best way to maximize our return, which simply means it shows us how to make the highest finish possible in the tournament. It's not a perfect method, but it's the best we have and many good players understand ICM concepts very well.