We do have an amazing ability to make ourselves believe things that are ridiculous, sometimes to fit in with the culture around us. Religion is a major example of that. But your point is well-taken. Familiarity can breed acceptance. Someone who thinks Zeus on his mountain or Odin or Krishna are ridiculous will accept Christian beliefs because they grew up hearing about them.
But, by and large, you can't make yourself truly believe something when all the evidence is contrary to it.
I also think Pascal was presenting a scenario that was Christianity or nothing. I may be wrong about that but probably he was. Today, we have so much more awareness of the beliefs of other cultures. So it's not just the Christian god or nothing. What if there is some other exclusionist god that says, "Believe only in me or perish"? OOPs. Now, I guess you've got to choose and still have the possibility of being wrong.
Plus if an all-powerful god did exist, it would know that someone is just pretending to believe in order to get a reward or avoid a punishment.
All of which is beside the point that if there was such an entity, it wouldn't be any of the gods of these ancient mythologies.