Bah. first off you write it as 6'2" 6 ft, 2 inches. when you're doing practical applications of this, running around with your tape measure and cutting wood to fit, you dont' want to start mixing in percentages. It gets more comfortable the more you use a tape measure because you're not using tenths. You're using quarters, eighths and 16ths. Need more precise? Haha, I don't want to say because it's vulgar but fits well on a job site.

It may seem like an extra pain in the neck but I think it just has to do with a personal aesthetic scale, one that can grow on you quickly.

I like to divide and multiply by 2 and 3 and 4, it keeps the numbers around me simple and. And doing that with inches, you have 12, 24, 48. Other things scale-wise to people ends up being kind of nice.

Door widths at 30" Sheets of plywood and drywall at 4'x 8'. Heavy to handle but cover a lot of area. These template defaults just kind of become aesthetically pleasing to work with after I'd say a short time, one can appreciate the units of measurements and how we manufacture to suit them and ourselves best.