Using the spare tire is generally not the safest option. For my
diminutive wife, it's not an option at all. I would rather she didn't
flag down some stranger to "assist" her.


There is no reason why any adult who isn't actually crippled
shouldn't be able to change a tire on a modern car by themselves.


That's a just plain stupid statement that neither requires, nor
deserves specific rebuttal.

Not as stupid as you advocating that fix-a-flat should always be used
except for blow out situations.