We started the "switch" (aka knife and fork switch) during the colonial times. I've heard several different versions... but they all boil down to the idea that having an angry man with a knife in his right ,hand left the door of opportunity for throwing that knife, open just a little too wide. Hence a law was enacted in several areas that banned a knife being in a man's right hand until he was actively cutting his meat and then it had to be put down, and a fork replaced with it (apparently forks were not viewed as such deadly weapons... but let me tell you... my mum wielded hers ferociously when our posture was less than desirable.) I'm not too certain as to whether the Imperial forces enacted the laws during the revolution, or whether it happened prior. I DO know that we transitioned to riding on the right side of the street so that we could "legally" run brits over for being on the "wrong" side of the street.
But I digress.
I know this, mostly because I prefer the European fashion of eating, and would *constantly* forget to do the hand switch... and was similarly reprimanded for it. (My chopstick etiquette is flawless, but my own country's eating habits I just sort of ignored. I have to admit... in part, it's because it ticked my mum off.)
I was forced to learn etiquette at the tines of a fork (and still have scars where my mum would jab a little overzealously, but she took my dad's career seriously and properly behaved and etiquette'd children were political assets ). For my OWN son (the fork memories still strong)... we turn it into a game. We pretend to be eating in Rome, the UK, or Egypt or Arabia, America, or Japan... in a posh or casual restaurant, in a posh or casual home, or in a slum. When we have friends from other countries come visit we have them set the "game". It's really fun how minor variations exist.
The "game" seems to work fairly well. Kiddo particularly likes Japan since he can pick up his bowls and slurp and Posh US or Continental service because of the vast array of silverware and glasses.
I second the fine motor question.