I don't see anything condescending about either one of those announcements. Seriously, the admonition to not leave the platform, well people do go into a station and get left behind. And the stuff about not leaving things behind, again people do that all the time. I know that in many hotels, if you forget to pack a phone charger, just ask at the front desk - they probably have a drawer full of left behind chargers.
Now I've had some lounge car attendants that seemed like they'd never shut up
Now I've had some lounge car attendants that seemed like they'd never shut up