Why isn't there many meteors in the troposphere?

Most meteors burn up in the atmosphere before reaching the troposphere, as they typically enter the Earth's atmosphere at high speeds and ignite upon contact with the air in the mesosphere, which lies above the troposphere. Additionally, the troposphere is primarily where weather occurs and contains a significant amount of air, which leads to increased friction and heat, causing meteors to disintegrate at higher altitudes. Consequently, by the time any debris reaches the troposphere, it is usually too small or has already burned up.