Well that’s a tough one. If the DataSheet view is sort of a SupremeManagement view and you have to give them access to that and it bypasses all “captures”, what can you do!
In days of old, we used to have two windows open - the data sheet and a form, side by side. The Data sheet was sized so you could see the fields necessary to scroll/select what you wanted and the chosen record would display on the form so specific fields could be edited.
Habits are hard to break but you from could have a BIG paste record button on it that would copy the content of the current record, paste a new one in with unique ID, and allow editing of that new record.
If you have added some tracking field so you know who added what records you could check the database at the end of the day and see who is not using the button on the form and maybe have a discussion with them about the problem it causes.
I think a long, long time ago there was a problem with an apple in a garden and people were told not it eat it - they were given plenty of alternatives. If I recall, that didn’t turn out too well either.