Dale, I know your frustration, but it is not only the parents who do this. I cook at times in a family member’s home and go through the same thing. One time I commented on the potato peeler....she should throw it out and get a new one. The next time I cooked there, that same dull, falling apart peeler was still there. When we finished doing the dishes (Gene always does them) I asked him where the potato peeler was...he had not seen it, nor had I after I finished using it. OMG it was gone! So, I went to the kitchen store and bought a nice quality peeler, one I knew would be sharp and easy on the hands. The lady of the house was not happy with me.
So in regards to your parents: the fact that they are depression era says it all. I have found that people that went through that or had parents who did are very frugal with so many things. They also generally have money to spend and will buy furniture, lamps and things they want for the house. Unless they are true foodies, like all of us here, they are not going to spend money on kitchen gadgets (and that is what they think of them), while we all know that our kitchen tools are necessary not only for safety but ease of use. Gene used to make comments about the money I spent on a knife (he is an ex meat cutter?) or a small appliance, etc. I quickly pointed out that when he buys something for his workshop, he buys good quality, because it is a tool. I told him my cooking supplies where my tools, as well. He understood that and has since grown to appreciate the quality of things we have in our kitchen. Actually, every time I clean drawers, cupboards in my kitchen, I look at what I have. If it is broken, worn out, or unsafe, out it goes. So if I may offer this advice, because I am probably much older than you, when you go visit again, take your good knives, and do the best you can at mom and dad's house. Someday soon they won't be around. Now, I need to go take a look at some of my LOOK non-stick....one or two of them are looking a bit scary! Thanks for the prompt!