One hobby/sport that has continued to the current day to use imperial is fishing/angling . I’ve included a couple of links to a page for Australian made Rod blanks , that being Synder Glass , Wilson amd Kilwell . When you click on the link you will notice nothing is shown in metric . The tackle store I usually order from is FTA - Mo tackle in Coffs Harbour , NSW .It is from their current catalogue .
The second link is for a 1.8 metre ( 6 ft rod Blank ) The 72 in product code stands for , you guessed it , 72 inches .
Off the shelf Rods , Shimano , Daiwa etc are now usually , and I mean usually shown in metric sizes . Terminal tackle , swivels , sinkers etc is the same hotch potch of bastardisation between imperial and metric ./
Recently whilst at BFC tackle a young angler who had just purchased his first surf rod came up to me , probably because he thought I was pre metric looking The rod was a 12 foot ( 3.65 metre ) medium action . Cast weight was shown as 25- 75 gram . The poor little bugger went to the surf weight sinker section and they all had 1 , 2 , 3 , 4 , 5 , 6 , stamped on them , they were loose not pre packed . They were bomb or snapper lead type sinkers . Am I loosing you here ??? I know I’m lost. /
Ok I explained to him that his rod cast weight of 25-75 grm meant 1 - 3 ounces roughly in imperial and that the numbers stamped on the sinkers showed this .I asked what surf beach he intended to fish and picked out a range of 1 to 3 ounce sinkers for him . The poor kid had no idea about imperial weights and measures but picked up on the 1 - 3 meaning and told me I must be " real " old to know it . That made me feel great . It’s not all doom and gloom though .Recently there has been effort by the industry to standardise things . Especially spinning reels where a sizing system rather than a line weight system is gradually being used by the manufacturers to simplify their product lines . /
I really think think that they still use imperial in fishing so old farts like me don’t think we have exceeded our shelf life /