Either by law or by company rules?
When I first started work, it was entirely usual for people to smoke at their desks, even in front of customers.
Gradually, that became frowned upon and designated smoking areas were provided, maybe the staffroom or a corner of the canteen.
Then that wasn't allowed and smoking areas went outside. Now, lots of businesses don't even allow smoking outside on their premises.
It's taken a while but it's quite a change in a couple of decades.
My current employer us all about wellbeing. We get lots of healthy eating advice and yet at every meeting the table is laden with sweets, biscuits and/or pastries.
Of course people have the choice not to partake but it would be so much easier if it wasn't there - like you can't smoke when it's not allowed.
DH's company have actually decreed that they will only supply fruit for meetings now. Do you think this will become widespread?
Should it?