Ah yes, how childish of OP to wonder why the majority of English speaking countries believe in answers to life's greatest questions with little to no evidence. What a naive little question, that one.
To each their own, but personally that sounds like a bad reason to stop pursuing life's greatest questions. Plenty of my family has passed away, but that doesn't make faith seem like a reliable pathway to truth.
I'd love to believe they're in an eternal paradise, but I'd also love to believe my next paycheck will be $1,000,000. The time to believe I'm a millionaire is when I have evidence for it, not when I'd be heartbroken otherwise.