An old boss of mine talked about driving a 20s or so Dodge with mechanical Human powered brakes. Automotive brakes started from there and they improved on a bad beginning I guess.
The early cars had “band” brakes .
Like on a go kart , when you stepped on the pedal it tightened a clamp around the outside of a small drum the axle .
Just like the metal strap oil filter wrenches .
And it was usually just on the rear axle
And virtually identical to the bands still used in automatic transmissions .
The model T Fords used bands and planetary gears in the transmission ,for many years , then they switched to a normal gear transmission in 1928 in the A
When they shifted to drums and shoes , it was still mechanical , with cables or rods , all powered by the drivers leg muscle , same as a 60s or 70s motorcycle , or a farm tractor , the Ford 9N and 8N tractors had mechanical drum brakes .
The millions of Model A Ford cars had mechanical drums operated by rods connected to the brake pedal , and ford used them up till 38 or 39
I think Chrysler switched to hydraulic drum brakes in the late 20s
The Model A’s with mechanical brakes wernt too bad , IF , every component was in excellent condition .
The cars were not very heavy and the absolute top speed was 45 mph .
I drove a lot of cars with hydraulic drums on all four wheels with no owner booster , when I was a kid my father always had older cars , a model A , a Nash Metropolitan, Corvair , and plenty of early 60s Fords and Mercury’s.
And my 75 Bronco had manual drums on all four wheels .
Bolt on some 33 or 35 inch tires and stopping from 65 mph becomes a real challenge .