It costs me 4$ a week in fuel to drive to work. A monthly transit pass is more than 100$. Even with an honored citizen pass which is just under 30$, it’s still cheaper for me to drive to work.

You are committing a mortal sin of personal finance - equating vehicle cost with gas cost. It is this precise mistake that results in countless American families literally driving themselves into poverty. The cost of gas is only a small fraction of the per-mile cost to operate a vehicle. This is one of the single biggest mistakes people mistake when assessing their personal finances, deciding on how far to live from work, deciding whether to drive or fly for a trip, etc.

All of the costs of vehicle ownership scale with mileage. Cars depreciate faster the more you drive them. The more you drive, the greater the chance of an accident and a resultingly higher insurance premium. Every mile you drive means more maintenance and burns through ever-more of your car's finite lifespan. Gas is the only one of these you feel so directly, but ALL of the costs of operating a vehicle scale with mileage.

It is difficult to calculate the true total cost of vehicle ownership, but a good approximation is the IRS mileage rate, which is 67 cents per mile. This is the IRS's best figuring of the average cost to operate a vehicle, averaged across the US vehicle fleet. Obviously it will be higher or lower depending on the precise vehicle you drive, how reckless a driver you are, etc.

But let's be generous and assume an average mpg efficiency of 35 mpg. If gas costs $3.50/gallon, then gas costs you about 10 cents per mile. Averaged across the US vehicle fleet, gas costs less 20% of the actual cost of operating a vehicle. A car is a big expensive asset that you burn through just like you burn through gas. Every mile you drive a vehicle gets it one mile closer to the junkyard.

This is what creates the illusion of driving being cheaper than it actually is. I mean, just think about it from first principles. A bigger vehicle like a train or bus is obviously going to be a hell of a lot cheaper to move a person the same distance. It's simple economies of scale. When you buy a transit pass, you are paying for your share of the full cost of operating a bus or train, not just the fuel cost.

If you want to calculate the true cost of operating a vehicle, a rough method is to take what you spend on gas and multiply by 5. That's a lot closer to your true cost per mile of owning and operating a vehicle.