Name two such cultures.
Japan, Aboriginal communities of the Northern Australia, Switzerland (they even have centers assisting it)..many others.
Name two countries that aren't "religious".
All countries have religions of some sort but non religious countries are Vietnam, Japan, Czech Republic, Sweden, Britain...many others.
If it's evolutionary how come the most ancient have a creation myth and a creator?
Because we are all homo-sapiens, same species and due to the fact we can envision our own demise we have creates stories that center us in a creation story that make us escape death. Also. Who created the creator? That's your question as a religious person.
Yeah, good one, because they could have a family, and share their happiness and create and help others, that means @jaredcwillis is saying they don't matter as a person, spoken like a true Decepticon.
They don't have the same aspirations as you. Simple as that