Please!

Maybe you can offer to do interesting programs on topics not ordinarily covered for the kids. Or, if you're not good at it yourself, find people who are and be their "agent".

Otherwise the door is open to the people you describe. Believe me, they make the time.

I remember one particular presenter who was doing a program for my daughter's fourth grade class, and as a PTO officer, I stopped in for a little while. Her topic was food webs in the wild. Somehow she had turned the topic to nuclear power, and how it was the font of all evil. I was about to say something (waaay out of policy for a civilian in the classroom) when my little girl, bless her, raised her hand and said, "Nuclear power doesn't cause acid rain that hurts the plants in your food web, but cars do. Did you drive here?" The presenter stuttered around a little and returned to the topic for which we (the PTO) were paying her. One of the boys in the class, whose dad worked in a nuke plant, looked at her with gratitude and relief.

My daughter could do that because she had the ammunition. She had people who talked to her about science and tech. We need more people to talk to other people about science and tech. All ages. Everywhere. Extremists get traction because their audiences are mis- or underinformed. We can all help to correct this.