Small plates
I have only used the lunch plates from my set since my surgery, I use a dessert fork and a coffee spoon, fruit nappies for dessert. Would seem strange now to use a dinner plate. I did have to buy extra coffee spoons since they seem to be used first. My husband is the same. So 12 dinner plates sit in the cupboard seldom used, hmm should throw them in the dishwasher to give them a cleaning in case we have company.
Laurie
I had the kids plastic plates which I used as much as they did. Now I just use the lunch plates and smaller bowls. I still use a teaspoon, and use whichever fork. I wouldn't worry about the size of glass, especially if it has water in it.
Having a smaller plate does help. The perception your brain has, is that there is more food on the plate than there really is. So you think you're eating more. It's one of those mind tricks that have been used for a long time. If you were to buy something, maybe a small divided plate. Then you can see exactly how much (percentage) you have of everything. But it's not needed.
Cathy