"Should be doing" and "is practical or feasible to do" are too different things. Not all of us are satisfied with browsing the web by emailing a wget daemon and reading it on a computer designed for a Chinese government contract with a 500 MHz MIPS processor. It works for Stallman because he puts a lot of value in having free software down to the BIOS level. The rest of us value other things (convenience, comfort, performance) and thus make different choices about the tech we use.