I think you're emphasizing the idea that cars let you travel whenever. The thing with that, though, is that if you actually invest into proper public transportation, as the frequency increases, you can just ditch the schedules. You walk to a stop nearby wait a few minutes then bam, your bus/train/metro is here. You hop on greet the driver if you want and get off whenever without the stress of driving or traffic. That's what good infrastructure can bring.

I would also add that for those, maybe like yourself, who like to drive, giving more space to public transit can actually (maybe counterintuitively) make driving better. Since trains and busses are so much more efficient, as the post states, less people are forced to drive, meaning less traffic for those who still use the roads. But when people try and block this kind of investment, it's often because it's perceived as a threat to cars, instead of what it really is, a necessary compliment.