I do think small cutlery is the answer. My now 11 year old granddaughter loved the special set I bought her (from Ikea, not expensive). The younger twins (15 months) are just getting to grips, as it were, with feeding themselves grownup food, but having been given baby spoons to hold are getting the idea, a little randomly, it's true.Their mother is about to buy extensive table/floor coverings to deal with the chaos in prospect. The little boy will plaster everything with food while he learns, I think, the little girl is manually precise, and may be relatively neat. (Their mother is not a woman to subscribe to stereotypes, that's just how these two are.)They are fortunate, it's true that the they and the two sets of grandparents are managing to share their care until they go to nursery, and therefore have the time and inclination to teach them,
For what it's worth, my children were always exhorted to remember 'grandma manners' when they went to visit or stay, which meant saying please and thank you properly, using cutlery properly, asking to get down at the end of meals and generally behaving with decorum. I am delighted to find that the two with children of their own set real store by good manners, though I wait to see whether asking to get down will have survived!
It is hard work, it does run against the grain of some of society, but I do sense that there is a strand among the child-bearing generation who do care.