The original point was "why would I learn a new thing, when I already know something which works". The response "some people don't have something they already know" is valid.
You're really bringing up a separate point which is "should we be reinventing the wheel?", I think that's a fair point, but it's not a response to the original commentator.
You're really bringing up a separate point which is "should we be reinventing the wheel?", I think that's a fair point, but it's not a response to the original commentator.