first hand you hold kings and one opponent shoves, do you pay?
against several villains and the board displays 4 spades and you have the king of spades, one villain shoves, call or fold?
everybody folds and the small blind shoves and your cards are pocket eight, in or out?
4 players enter a pot raising you hold pair of sevens and to see the flop need to pay a third of your stack, are you going for the set?
i mean, there are a lot of situationn that are going to be coin flips, and maybe you are going to take the risk or not and sometimes you take it and win and go deep and bust your br, or you are in a downswing and feel nothing is working
at the end is a balance (including your bankroll, because you can not afford to fall to zero and then start over again)