Some people visit customers, work on the go, work in a cafe, etc. That's the point of getting a laptop, no?

I can't downvote you enough for this comment, but hopefully others will. You're arguing that a device designed for portability is perfect as it is because you're supposed to use external monitors and proper keyboards. This is peak HN/Reddit/"current society", whatever you want to call it.

I'm arguing that using a laptop without dedicated input and display peripherals if you can avoid it is a bit of masochism and filing off the corners won't fix it.