When i was entirely car-free, i sometimes had situations arise where a car would have been easier ... but i never "regretted." No point. Mostly, on those rare unforeseeable occasions where a car would be Really handy, the LCF folks just have to work harder to get there. But you have a good plan and those sorts of things won't come up much, if ever.
Kind of funny ... you can get a car-ride ride with someone and listen to non-stop complaints about traffic, gridlock, other stupid drivers ... but most car owners never even realize they chose that, let alone that they obviously sometimes regret the choice.