yanbu, anyone who travels without insurance is slightly mad imho,
for the sake of around £30 a year i have very good cover, not only for medical bills, but cancellation, lost passports, money, baggege etc, plus, and very importantly, public liability,
unless you're mega rich and can afford to lose a couple of grand cancelling a holiday, or perhaps 60k in medical bills, or perhaps a few million if you cause an accident and someone sues you, i think 30 quid is a very small price to pay,
and most annual travel insurance covers you for uk stays of more than 3 nights.
to the poster who asked about insurance for the older traveller, saga do very good deals,
as to pet insurance, we have both the dog and the horse covered, not just for the medical aspect of it, but again, public liabilty, so very important in this day and age of litigation at the drop of a hat.