I really don't know. Short of us all writing to her with suggestions I doubt we can do anything about it but doesn't affect us really. Seriously, bowing and curtsying are anachronistic practices, makes me think of Jane Austen dramas, men and women all bowed and curtsied to eachother. It's unnecessary, one can be polite without all that. I wouldn't like anyone to feel they had to be deferential to me. Not likely to happen though thankfully.
Mrs May is not my cup of tea, I don't like her policies but she's a fellow human being, as good or bad as anyone else & there's no need for her to grovel.
The thread title is apt!