Take it from someone who grew up in a metric country - it makes absolutely no difference in everyday use. You are used to imperial units, so they make more sens

Take it from someone who grew up in a metric country - it makes absolutely no difference in everyday use. You are used to imperial units, so they make more sense to you. I'm not, so they feel weird, complicated and completely arbitrary. Typically I have to mentally convert to a metric measurement to have any intuition of how big or heavy something is. In everyday use, I don't care if something is one and 3/5ths of some part of somebody's finger - I'm used to metric so it looks about 4 centimetres... I'm not a builder, but I've never once heard any hint from my friends in construction that using millimetres has ever been a problem for them in their work, as they are used to it and the construction industry in every other country except the US is geared towards metric...