Ever done any plumbing? Get used to imperial units. Appliance repair that involves plumbing and mechanical may have both. Yay.
Gunsmithing? Then a combination of imperial with just a splash of metric for excitement. But mostly imperial.
Bike repair? Metric all the way. Same with cars and everything else, mostly. But...
I'm a disc golfer. Distance units are imperial in the U.S. and metric overseas (mostly).
BTW, why didn't the survey offer a "both (situational)" option? Seems quite the oversight...
EDIT: Some additional ironic thoughts. I think like most Americans, in imperial units. My height and weight, for example. I have to speak English to my American wife, who thinks exclusively in imperial units. When I sell a 124 gram front derailleur on eBay, I have to use a postal scale that's in ounces. Convenient because the USPS works in imperial units. I buy my cycling items, including clothing, from foreign web sites, so am now comfortable with my sizing in centimeters. I measured in inches and converted, though. I still think in inches for my physical sizes, and convert. For bikes, I think in metric units.
Last edited by Phil_gretz; 02-18-21 at 02:42 PM.