Another nod of agreement here too!!!
Sadly Jo,I'm like your folks-I hate waste,love to see clean plates.
And my portion control isn't too good(hence Ian and I being a lil tubby) but,I'm getting better,I'm not so stressed with finishing every morsel,and would rather the boys knew self control and when to say they've had enough.
However,they do have very healthy appetites,and snacks and treats are limited,as I'd rather they enjoyed their dinners!