I had a Mitsubishi Eclipse many years ago and it had both analog and digital speedometer but the digital one could only display KPH. I thought, hey this will be a good way to learn mph to kph conversion but in the long run I found that I just ignored the digital read out completely.
I actually prefer how we do the date, we put it in the order as if we were reading it. So 9-14-18 reads as September 14, 2018 and makes perfect sense. If you do it the other way, 14-9-18 just looks weird and reads as 14th day of September, 2018 which also sounds weird. We do need to adopt the metric system though.