Believe me, it's more or less common practice these days that a lot (putting it mildly) of mariners have absolutely no idea what they are doing on watch.
Radar, Ecdis and all other electronic aids, not to forget AIS, only make things worse. Just look outside and take sight-bearings of visual targets (that you spot outside the window!) and these accidents would never happen.
Nationality's, yeah better not to talk about that.
Cheers,
Roy