The Capone house on Palm Island, outside of Miami, where Al spent his final days. The household on Palm Island was made up of Al, Mae, and Sonny; Maeâs sister, Muriel; her husband, Louis Clark; and an old but alert fox terrier that barked ferociously at any stranger.
So, from the nursing point of view, 10 weeks of age, or when the kitten has been weaned, is the safest time for a kitten to leave its mother. If the kitten is still nursing at 12 weeks, something is wrong with the breederâs strategy.
Many kitten owners believe that how long till kittens open their eyes sets the standard for everything else, including how long until the kittens can be adopted. Most kittens can leave their mother as early as eight weeks, however it is much healthier for them if they stay until about twelve weeks. By twelve weeks, a litter of kittens can wreak havoc all throughout a house, climbing curtains, scratching couches, and even navigating their way up onto kitchen counters and tables.