No.
Feeding my own children comes first.
Feeding myself means I can be in the best shape to continue doing so.
Example below does not reflect the number of people I actually prep for or the length of time I have supplies for:
If I have one years food for myself & my son, by sharing it with 2 other people I have taken 6 months of food away from my son as well as myself.
I have no guarantee that they don't have someone 'so special' to them that I wouldn't soon find their other friends/family at the door & sharing my original 1 year with 4 other people means my son & I only eat for 4 months instead of year, with 6 other people means we only have 3 months instead of a year & so on.
Both my son & I have quite small appetites, so in reality sharing with just half a dozen others would easily wipe out those supplies in a month.
If I just shared 1 years food with the 3 other houses on the little row of houses where I live, it would be gone in less than a month.
I saved, I learned the skills to create & store what I have, I spent money on equipment to do this when they were spending it on haircuts, holidays, false nails & nights out.
I planted the food in my garden & spent the years & the money learning how to successfully grow the plants.
It is not my responsibility to take care of the feckless.
I will not let my family go hungry for random other people who will only be at my door because I have something they want.
If the next door neighbours water is off on a normal day I'd give them water from my taps, but in a real STHF situation if you're not on the list, you aren't coming in.