It's nice to see my own vet's advice on vaccination validated by another doctor.
The subject of canned vs. dry food has been done to death on Catster. Some cats,evidently, refuse to eat canned food. In my case, I simply haven't the finances to feed only canned; I did upgrade to Taste of the Wild dry, which is grain-free. In the evenings, I split a 12.5-oz can of Dave's among the three housecats; they seem to love it - or at least one of them does, as the dishes are all empty in the morning. Smokey and Shadow get grocery-store dry, although the TOTW seems to be lasting longer in the house, so I may be able to start feeding the outdoor cats that, too.
Years ago, before there was such a thing as a "premium" cat food, I had two cats that were free-fed on dry food; Cassandra lived to be almost 17 and went to the Bridge from a blood clot; Kalli was just 5 months short of 20 when she went from the same cause. I don't think grocery-store food is the best thing to feed a cat, but I don't think it kills them either. Cassandra, as I recall, was never sick; Kalli did develop diabetes which went into remission (and I understand that dry food may encourage diabetes); other than that, her major illness was an infection around the heart which was in no way caused by diet.
We all do the best we can with the resources at hand; I feed some premium food, but I won't think less of anyone who feeds the "lesser" brands.