EDC thinking will certainly rub off on spouses. My wife now has a SAK on her keychain, small first aid kit in her purse, and we keep a small box of emergency supplies and snacks in the van. The largest example is this weekend she asked me to put together a small emergency kit to give to her sister as a birthday present. After seeing for themselves the value of having tools, first aid supplies, snacks and other things available, others will want to spread the idea of being prepared. I too got the rolling of the eyes, but after a while that turns into a look of acknowledgement and agreement.
SRMC