I mean, I can lock my wheels with V brakes
> can you also control your speed in a manageable way from gently scrubbing speed to full on maximum stopping but not skidding?
> can you do that in all weather conditions in a consistent manner?
> can you also do that with a wobbly wheel or dented rim?
blah balh blah... many other things about wearing out rims, adjusting brake blocks, cables etc etc.
Believe me I'm the first to support v-brakes in some circumstances, I have several bikes still with them in regular use, but for riding in crappy weather and reliability wise they don't even come close.
Go back to drum brakes on a car, sure they still will stop the car, but hardly comparable to modern disks and ABS from a control point of view, same argument, you dont *need* them, but why deny yourself the benefits?