Maybe you’re testing a new app or a game you built yourself. Networking stuff can get super finicky, and the firewall might block the connection without asking. It’s like trying to hug a friend through a screen door—frustrating and totally ineffective.
Another reason? You might be on a trusted network—say, your home Wi-Fi with no other devices around. In that case, the firewall is like wearing a raincoat indoors when it’s perfectly sunny. You don’t really need it, and it’s just uncomfortable.