90% of active ad watching in the US is probably from tourists watching with morbid fascination. I know it’s one of the things I do when bored in a hotel room.
"Zu Risiken und Nebenwirkungen fragen Sie Ihren Arzt oder Apotheker."
which translates to:
"Concerning risks and side effects please ask your doctor or pharmacist."
It's like pestering users with alerts. After a certain point, you can't really blame someone for tuning them out and just clicking OK.
https://metro.co.uk/2020/12/18/covid-vaccine-volunteer-struc...
(Hard to find a nice source for this because there's a metaphor going around now about covid vaccines and lightning, but I saw it around more at the time. If anyone is better at search engines with date filtering or has a super reputable link, please share it below)