[icebraining]

Monopolists call that "bundling". For example co-financing internet service by requiring you also pay for phone service.

No. Bundling means the product I want becomes more expensive, and therefore less competitive. Taxes means I have to pay for the product in any case, removing any competitive pressure.

The main difference is that a public service doesn't need to have profit maximizing as its primary goal.

Neither does a company, that's a myth. Plus, non-profits and coops exist.