I live in a country were, without exaggeration, 90%+ of drivers don't use turn indicators or do it last minute unless is for their own benefit (for example they'd turning left and need to cross the opposite lane in).

If it's for the safety of others, especially pedestrians, forget about it.

I just so happen to have lived 2 decades abroad, one of which in Northern Europe, so this crap (and the trying to bully pedestrians on zebra crossings) gets on my nerves big time.