I have twin boys, so the difference is a matter of minutes rather than years
When they were about 2 (personalities really showing themselves) I decided that I wouldn't be telling anyone which one was the older twin. Possibly if they had a different birth order I wouldn't have thought about it, but I can really imagine DT1 (even on here I don't normally distinguish them like that) using it against his brother.
Anyway, like most of my decisions, it seems that my friends and family (ie those who I'd happily explain myself to) seem to be entirely fine with this. No-one has queried it at all. But I've had a couple of
faces from virtual strangers who've only asked the question as something to say really. I doubt they care or would remember who was older.
Is it a weird decision to make?