Why should gases be insulators at ordinary pressures, and start conducting at low pressures.

Question

$\begin{array}{1 1} \text{Due to their frequency collision with the molecules , at ordinary temperature} \\ \text{At low pressure , their density decreases and ionization increase} \\ \text{At ordinary temperatures, the gas molecule can easily reach their electron} \\ \text{ At low pressures, Mean per path becomes very small} \end{array} $