“Let's pair/mob when it makes sense”.

Sure, just be aware that your sense for determining “when it makes sense” was shaped by the opposite way of working (work in isolation) which likely optimizes for having hard time finding scenarios when pair/mob makes sense.

Intentionally trying to do it against that sense, is a leap of faith our brain needs to open up for opportunity to explore benefits we’re not yet able to see with the current belief system (unknown unknown blind spots).