Computers didn't always have visual displays either; shouldn't they always be able to work with paper printouts? Requiring a mouse and assuming it to always be

Computers didn't always have visual displays either; shouldn't they always be able to work with paper printouts? Requiring a mouse and assuming it to always be present is not a bad thing; it's progress. macOS has good accessibility features, so you can set it up to use it without a mouse if you really need to.