There are some things Mr. Ramsey teaches that I don't agree with, such as never owning credit cards.
I have to travel to see friends and family, which is almost impossible to do without a credit card. My parents just taught me to never charge anything unless I could actually pay for it in cash. Now if a credit card becomes too tempting, by all means, I agree that abstinence from plastic might be best.
But I have a no fee cashback card that I use for all the regular expenses that I have to pay anyway, and I get back several hundred dollars a year for doing nothing more than paying for everyday things.
I'm certainly not trying to challenge Mr. Ramsey's wisdom, I'm just saying, I always try to take things with a block of salt because what works for one person might not work for another.