I teach the UK GCSE and AS/A Level curriculum and I need to know if it is still common practice, in 2020, for British English to omit the full stop after honorifics (Mr, Mrs, Ms, etc.)?
I ask this because I've noticed both the omission, and usage, of the period in English and American texts, and I want to be concurrent with Cambridge curricula.
I've searched through the forum, and while I have found similar threads (and read through them) the questions were either published about eight years ago (How to correctly assimilate dots, if at all? ; Is it proper to omit periods after honorifics (Mr, Mrs, Dr)?) or they don't quite answer my question (Addressing an unmarried woman, 1930s; Say thank you to multiple professors and doctors). However, if there is a more recent post (or multiple) that I have not noticed, then I apologise in advance for the duplicate.
If anyone has an up to date (up-to-date?) website or grammar e-book (preferably congruent with British grammar) they can recommend to me, free if at all possible as my country does not allow for easy online international payment, I would be sincerely grateful.
edit Many thanks for everyone's help.