* Light Pollution: The most common reason we don't see all the stars is light pollution. Artificial light from cities, streetlights, and even our own homes scatters in the atmosphere and washes out the fainter stars. This is why people often see more stars in rural areas with darker skies.
* Atmospheric Conditions: The Earth's atmosphere can be a bit like a blurry lens, scattering starlight and making fainter stars invisible. This is why a clear night with little cloud cover and minimal humidity results in the best stargazing.
* Our Eyes' Limitations: Human eyes are designed to see in daylight and can only pick up a certain amount of light. Fainter stars simply don't register on our retinas. This is why astronomers use telescopes to gather more light and see fainter objects.
There are no times when you see "too many" stars. The human eye can only perceive a limited number of stars, even under perfect conditions. The billions of stars in our galaxy and beyond remain unseen to the naked eye.
