Actually, I do that as a guest lecturer on cruise ships. I talk about nature, crops, ecosystems, etc. Here's a post about my first in 2017. Since then, I've had dozens of gigs on Holland America, Viking, & Princess. I make science fun & interesting. greengardeningmatters.blogspot.com/2017/03/reac...
I hate the cruise industry but I have to give you props for taking the message to a captive audience. Maybe a few attendees added native plants to their home gardens after hearing your presentation.
Yes, it's been quite effective, especially on the longer cruises where I give 10 or more lectures. It's like a whole semester course only more fun. In 2024 I did a cruise to HI & back. I filled the 675-seat theater. They simulcast me into a sports lounge with screens for another 200 people.