Most of the bikes in the world are inexpensive. In those bikes, you will not to a more expensive solution for a problem that has been already solved within a reasonable cost. Rim brakes are likely to be around still a century from now, but some of their details may evolve. Your original brakes are likely to last 20y and then the only issue is availability of replacement brake pads. Those for brakes popular 20y ago are there in the market.