Sorry, I feel you may be proper which i have to retract that slightly: It's normal in basically all dialects of British English, but I believe you might be right that it's not so frequent in e.g. the US, where by a glottal end would probably be a lot more https://ideas-for-living-room-wal12233.gynoblog.com/36598255/living-room-ideas-for-decorating-an-overview