If they are not preppy people to begin with and will likely end up at your place in the event of long term disruption, a 72 hour kit could be good. The assortment of things can help them catch the bug too. Those blue 6 gallon water jugs aren't a sexy purchase to most at the start lol
I got my sister and brother in law this one. Covers a lot of basics, but needs a tourniquet and water filtration.
https://www.amazon.com/dp/B07BFRV7K5/ref=cm_sw_r_cp_apa_fabc_iFS3Fb9SG7QHJ?_encoding=UTF8&psc=1
Yes, it's amazon. Similar ones can be found, but so can really crappy ones not worth $25.
I'm hoping it gets them a little hooked.