Plus, Blender has an "Emulate Numpad" option that lets you map the numpad controls onto your regular numeric keys (making it harder to use them for their normal purpose, so I wouldn't recommend it unless an external numpad is not an option for some reason). And they have an "Emulate 3 Button Mouse" option, where the middle mouse button can be emulated by holding down Alt while clicking the left mouse button. (Which means that some Alt+LMB shortcuts become unavailable, so again, the best option is to plug in a USB or Bluetooth mouse).
They've thought of it. Their defaults remain the default for a good reason, because the hardware to properly use the default shortcuts is cheap. But they've also accommodated the people who don't want to buy an external numpad or mouse.