Alexa we might question whether or not this is appropriate workwear but it doesn't mean we disapprove of the dress itself.
I'm not particularly keen on the one shoulder or cold shoulder look for myself but it doesn't mean that I would criticise a friend with nice shoulders wearing that dress for a night out, in fact it could look quite glam.
I think most of the vitriol is on other fora and could be from younger people
And not all Gransnetrers are old as has been pointed out quite vociferously recently.
Certainly few are elderly, and using elderly as an insult is ageist, isn't it?