I have 3 cats in my home ( 1 belongs to an Uncle and the other 2 belong to his son, my cousin). Two of the cats are almost 2 and the third is a little younger than 1. Every so often I will give Tyge ( that's the younger one) a little milk but if he doesn't drink it all Midnight and Rigby end up drinking it. At what age, should they not be allowed to have milk? I only give it to Tyge seeing how he is growing length wise so it doesn't look like he eats but he's always at the food bowl crunching and munching away.