Why is it so hard to admit your favorite feature idea is a waste of time?

When you spend hours sketching out a product plan and convincing yourself it's brilliant asking for external feedback feels genuinely terrifying because you're scared someone will pop your bubble. I remember almost launching a complicated update until a casual chat with a friend made me realize people were already handling that task using a much simpler tool. We tend to fall in love with our own ideas instead of looking at how people actually live their workflow.

How do you separate your personal excitement from what the market actually needs?