> Uber is not uniquely positioned to pool multiple people in one car, to suggest otherwise is quite frankly ridiculous.

Of course they are, this feature is highly dependent on network effects and Uber is the biggest player.

> Also there are no preexisting cars of regular people for Uber to take advantage of because regular people don't have adequate insurance.

Besides the fact that most people don't give a shit about this, Uber does provide commercial insurance for UberX drivers while they are logged in: https://www.intact.ca/uber-ride-sharing