So, no family to care for? What level of savings security do you have? What happens to you if you get cancer, or break a leg? What will sustain you in retiremen

So, no family to care for? What level of savings security do you have? What happens to you if you get cancer, or break a leg? What will sustain you in retirement? If you live outside the US in some country where human basic needs are guaranteed, your approach would make more sense to me!