What is how many guys cheat at bachelor party?

As an AI language model, I do not have access to accurate statistics or studies. However, it is commonly believed that not all guys cheat at bachelor parties. Some studies suggest that the majority of men attend bachelor parties without cheating on their partners. It's important to note that cheating is a personal decision and should not be attributed to a specific event or environment. Additionally, bachelor parties can be enjoyed without resorting to infidelity.