Sounds to me to be more of a problem with the operator of the vehicle exceeding its capabilities and pushing too far beyond its limit and not showing due care. If your brakes suck and you know it then either upgrade or ride slow enough to accommodate that week point of your vehicle. And if your brakes suck and you don't know it then you jump on a bike and just take off with way too much recklessness not even bothering to check your equipment in the slightest way.
As to "learn how to skid" I believe that refers to riding fixed gear bikes with no brakes where a particular learned technique can be used to lock your legs on a pedal stroke and skid the rear wheel to stop quicker then you can just by putting back pressure on the pedals. (I would strongly suggest a front hand brake even if you know how to skid). There is also the old BMX trick where you can learn how to flip off the seat to one side and reach around with one foot and use the bottom of your shoe wedged in behind the seat-post against the rear tire to lock it up and skid brake the rear wheel that way. (Again, I still don't suggest deliberately riding a bike with no brakes and depending on these techniques at least on the road or public paths with other people around, but they are good to know how to do just in-case you ever need them.)