In a Nash Equilibrium scenario, what is the main reason players choose not to deviate from their current strategies?

In a Nash Equilibrium, players choose not to change their strategies because doing so would not improve their situation. Each player considers what the others are doing and realizes that if they switch their strategy, they might end up worse off. For example, imagine two companies setting prices for the same product. If both companies have set their prices in a way that maximizes their profits given the other's price, neither will want to change their price because it could lead to lower profits. This mutual best response is what keeps them stable in their choices, creating a balance where everyone is satisfied with their current strategy.