> The physical function keys seem like more of an issue than escape, since I thought most people who use escape a lot in their work already use the capslock key

> The physical function keys seem like more of an issue than escape, since I thought most people who use escape a lot in their work already use the capslock key in its place. I assume you are talking about Vim users. The escape key is the default. Be careful about assuming that "most people" change the defaults, that's almost never the case.