Left handed tapes have the scale running from right to left. Left-handers usually hold the measure in their left hand and pull with the right, but the numbers are always upside down! When measuring with a retractable measure, most of us would like to measure from right to left. We lock the start of the tape over the right end of what we are measuring then hold the case with our left hand and pull to the left to expand the easure.That's why our range of measuring tapes have the scale (in imperial and metric) running from right to left just like our rulers. Our range includes a dressmakers tape and two sizes of steel retractable measures.
With the retractable measures, there is still the problem of which hand you use to mark with once you have measured the correct length, but right-handers have that as well!