I have even folded A/A in certain circumstances, Short on chips, 2 away from the money bubble and up against the biggest stack in the game, Sure I folded, and as 2 other players were already all-in I was not going to gamble on a coin toss with 3 players.
I was able to see the flop, turn and River and I was right to fold as the chip leader took both players out and I would have been just another casualty, I not only made the money I also laddered up gaining more money on the way and almost made the Final Table.
You are not forced into playing any hand that is dealt to you, and I dictate when I go all-in not any other player, You have to rely on your instincts, and if the timing does not feel right, just Fold!
I once folded an A/ 7o hand that would have lost against an A/K hand, and when I made a remark to another player, he was dumbfounded why I had folded an Ace Saying " I would never fold an Ace" and I replied "I know that's why you are the short stack, and I have plenty" You don't play every hand with an Ace in it just because it is the best card in the deck, Poker is more than playing the 2 cards you are dealt, there is a lot more to it and choosing the right time to Call, Raise or Fold, is very important when you want to win.
That is why I always say I don't have a favourite hand, because any 2 cards can win, and any 2 cards can lose. a phrase I heard recently is "Raise with the best, Call to invest, and Fold all the rest" and it is very true, something I have practised when playing Poker, but you have to choose the right moment to do it!