This is a separate article which addresses this topic - Reluctant Spouses. It also talks about other family members with the same attitude toward (against) prepping.
https://prepperbits.com/reluctant-prepper-family/The author presents several types of response to the prepper outlook. He then goes into some detail on how, exactly to reply when you (the prepper) encounter each response.
Also read the comments which follow this article. The first two look promising. I hope more will follow, so check back later.
Since, if you're reading this, you are either already a prepper or are curious about prepping and want to learn more, this article is directed at you.
Personally, I'm still dealing with the 'reluctance" factor. It is not something which can be changed with a single discussion. Conversely, if you try to pound the point home
, you risk pushing away the person you are trying to convince...
Try some of the advice from the author and don't expect a miraculous awakening from anyone. Slow and steady wins this race, even if you wind up being the only one running toward a finish line.