Quite a misleading and meaningless comparison
You’re also 16 times more likely to die as a fisherman than a soldier in a given year. Death rates in soldiers are almost exactly the same as painter decorators.
On a serious note, maybe take them to your nearest AFCO and see about joining the TA for a little while to see what it’s like? I was in the TA for 2 years at Uni and was considering joining the army or Navy after graduating. However, I didn’t think much to the whole uber-tory vibe, seeming lack of any intelligence in many of the senior officers and excessive binge drinking. It isn’t a job but a lifestyle and you either fit in or not and if you don’t it all seems a little weird. The unnecessary vernacular and pointless traditions made me feel that the army was a whole different world.
On the flip side I got paid to learn to ski, would have got some great outdoors and SCUBA qualifications (but for admin F-ups), might have got a commission (another admin F-up) and got to travel a bit. You also make great friends, get great disposable income, pension and healthcare among other benefits.
My advice would be to maybe take a look at some of the scholarships available for A levels or Uni. There’s also Wellbeck college which might be of interest? When you consider you could have a 30k degree paid for, be in the TA for 3 years at uni earning up to 2-5k and then walk straight into a decent job it does seem fairly attractive and you can leave after only a few years with a big wad of cash, lots of free qualifications, lots of friends and memories.