I’d think most things post WW2 would be pretty good if kept up and neighbors kept up. Probably even older if they went through checking for gaps and air leaks. Neighbors play a role, if there’s a mice outbreak they’ll find more weaknesses.
Also we have fridges now. Yes you might argue to not put bread in the fridge but if mice are eating it you’d probably do it pretty quick.
Look at this guy, living in a house less than 70 years old.
I’d think most things post WW2 would be pretty good if kept up and neighbors kept up. Probably even older if they went through checking for gaps and air leaks. Neighbors play a role, if there’s a mice outbreak they’ll find more weaknesses.
Also we have fridges now. Yes you might argue to not put bread in the fridge but if mice are eating it you’d probably do it pretty quick.