I know, I get it.
The traditional way is for professional speakers to come to your school, take over the lecture theatre or performance space, and deliver a presentation or talk to your parent community.
But, aside from the obvious (hello Covid), parents actually PREFER the webinar system.
No travel time, no having to change into 'school clothes'/fix up hair or make-up, no having to get dinner ready early, no need drive around 3 times to find a park.
Therefore attendance is higher and therefore more of your students are positively impacted.
The cost and investment for everyone involved is lower.
You don't have to book out the space, set it up, be there to meet and greet.
I don't have to travel and therefore can charge a much lower speaker fee than I would in person.
Parents only need to commit for an hour, not see it as a 'whole evening thing'.