Teaching & education: yes, I find it good when the students can make up their own minds and not being directed at what the teacher beliefs. When they "smell" that, they stop listening.
Yes, I think our education system should be geared more toward participatory learning. I find opposites are really helpful here, because opposites make everything interesting. If you teach a child something as an established fact, it becomes boring. "We know this. Humanity knows this. So why do I have to learn it? Why do I have to learn all the names of all the rivers in my country?" But if you introduce opposites, controversy, suddenly the subject becomes important, because the truth is at stake. Take the moonlanding for example. You can either teach the dry facts of the case, in which case I believe the reaction will be "who cares". Or you can introduce all the arguments of all those people who say we never went to the moon. Now suddenly you have to take sides, participate, defend your opinion, etc., it's much more like sports, and kids play sports for fun, you don't even really need to teach them much!
if my point of view is correct for me, it is not necessarily correct for my client or for you?
Well it all depends. Some things have to do with personal values and might be difficult to judge, but other things are objective facts. People might have a certain reaction when I say "God definitely does not exist and I can prove it 100%", but they will not have the same reaction when I say "Hercules doesn't exist, 100%", "Zeus does not exist, he is a fabrication", "Santa Claus is a lie". People have outgrown those beliefs, these beliefs don't offer them anything anymore, so in those cases they agree it's an objective fact, they don't even care, it's like "why are you stating the obvious?" Would those beliefs offer people some good if some people believed in them? Probably. Does believing in Santa Claus make children happier? Probably. But we have to ask ourselves if, in general, it's better to believe in lies or in truths. Of course, sometimes, lies will be helpful. But we can't make separate calculations each individual time, or for each individual person, and say "Erica will probably benefit more if she believes, Alex will benefit more if he doesn't believe, but if x happens to Erica she's probably better off not believing, and if y happens to Alex he's probably better off believing". This becomes too complicated, and we have to adopt a general rule to make life simpler, a rule like "in general, it's better to be rational all the time, even if sometimes it's really painful". Also, I don't know any research that shows that countries or eras where religion is more important than science, are happier or better off. Was Europe better during the Middle Ages? I don't think so. It's pretty clear that religion actually makes people more unhappy.
I hope you are well and that you will return! I hope it's just too much work, and not some other more serious matter.