I learnt both at school and as I live in Germany I only use metric anyway. (So my babies were all born with metric weights and measures.) But I ask for a pound or a half a pound of, say, mincemeat, at the counter, and the assistant will weigh out 500g or 250g, no problem. I'm really not fussed if a recipe is in grams or ounces.
Sorry to be on the fence, when everyone is so divided on this subject. I just get on with it.
Trade with the US is no excuse for clinging on to imperial, though, as their measurements, particularly volume, (pints and gallons) are different from the UK ones.