My kids don't get to taste much beer - but they smell plenty, starting from the mash tun through to when I am drinking. I figured that we teach them the names of colours and musical notes - why not aromas. Their noses are pretty sharp - they just need to learn the names of things.
My wife is into cooking and does the same with herbs - getting them to indentify what she has used.
Ant Hayes
Tonbridge, Kent