If the car has disc brakes, uneven wear is a symptom of a poorly performing brake caliper. The piston is not fully retracting, or the caliper is not freely "sliding" on its' pins (bolts). Either defect will allow for constant contact of the brake pad with the rotor, creating advanced wear.
If the question concerns why the front brakes wear out sooner, then the answer is physics. 70% of the stopping power comes from the front brakes, the majority of weight is on the front axel, and you are most often stopping forward motion. All these factors create a much quicker rate of wear in your front brakes...which is normal.
Yes and any and all cars brakes get stiff or stop working when they wear out
No brake pads to wear out. Can't overheat the brakes.
It is probably your brake rotors causing the wobble or shake. As they wear the surface becomes rough and less perfect causing the brakes to grab unevenly.
It steers funny, wear the tires unevenly, or if it's real bad, has the wheels sitting unevenly in the wheel arches.
No. Presently electromagnetic brakes are not used in cars but the can be used If I may finish that..on trailers
the brakes or the emrgen see brakes
Well, considering the fact that cars don't work without brakes, Brakes were put into cars at the very beginning of car-time. Common sense, evidently, is something you lack.
They wear more quickly and unevenly. Such a condition can affect steering.
Improper inflation or front end out of alignment.
F1 cars need friction for their brakes, if they didn't have friction on there brakes then it wouldn't be able to brake.
Tires are a wear item just as brakes are. They will wear from friction. Properly inflated they should wear evenly. PSI inflation should be checked regularly. If they are not wearing evenly the vehicle may need an alignment.
In most new cars the parking brake light is also activated when the linings of your brakes wear out.