Dominc this is what worries me also. Once when dc was 3 we were both bed ridden.
Both ends, but in addition flu like symptoms, aching, headaches, sore body, sore throat.
Luckily someone could take dd then.
Thankfully if we were literally bedridden both dd can do basic sandwiches, get themselves milk and drinks.
That's a huge relief to me.
One dd could possibly make bread, but not anything on the stove yet.
The tipping point where dc turn from total reliance to actually being able to self support a little
Being really ill with small dc was worse points of all parenting. All you want to do is be ill, but you can't.
I really feel for those who have now family help /single parents etc. But I also guess those know what hell it is and will prep a little.