When you do get around to replacing/relining those brakes, here's a sneaky trick that will reduce the frequency of adjusting sessions. New Huck brakes undergo a wearing-in process until the radius of the linings exactly match the drum. Until that happens, the pedal height will get low, and another adjustment will be needed. You'll probably also notice reduced stopping efficiency until the brakes get a full lining/drum contact patch. Once the lining matches up with the drum, further adjustments will be few and far between. You can short-stop the process by gluing a piece of coarse sandpaper (80 grit) to the inside of the drum and scuff-sanding the linings to the approximate radius of the drum. If you use a water-based glue like original Elmer's white glue, a little boiling water removes the sandpaper easily.
Jerry