It's not important, it's easier.
My husband and I disagree and agree all the time about serious topics - our main thing is to agree to disagree. He is his own person and I shouldn't change his thoughts because we are married.
I have my opinions and he does his, but we don't compromise on what we believe in. He isn't a JW and leans towards the Agnostic/Atheist belief system( little confused still) . However, I believe in God, more now than when I was a JW. For those who are Atheists, I don't judge you for what you believe in and I never say your "wrong". I could be wrong, who knows. I'm just happy that there are others with different views.
With our children, we both agreed not to raise them in a religion. We want them to grow up, knowing all sorts of beliefs and customs. Whatever they decide is up to them, but I want them to know what's out there.
Brooke