"Is it ok not to believe? Or ask for more evidence ............."
Of course it is ok. I think the danger is to arbitrarily ignore evidence. Science and religion have their acceptable versions of truth. Sometimes the reason for these sanctioned truths are the same. Someone is making $$$ and a name for themselves, or keeping a dynasty going. I think you have to listen to both sides. If you don't you miss something and dogma takes over. It is pretty easy to see who is sincerely searching and who is just concerned with businesss as usual, or afraid of losing their funding.