I replied in your other thread about the dangers an outdoor kitty can face, so you already know my opinion

Seriously, like I said, it IS also an American idea. I know most european countries would think its absurd to keep a kitty indoors only. One magazine article I read that was written in England said that cats that live indoor try to commit suicide by jumping off balconies (read this only days after my indoor only kitty Pouncer took a fall off the balcony and broke his paw! LOL) but the truth is, indoor kitties can be every bit as happy and entertained indoors if you provide lots if interaction with yourself and other humans in the house. Give them plenty of toys to keep them active physically and emotionally.

PS: Saw your question about litter... the clumping can actually trun into a cement like substance when you add a lot of water, and it actually can block up everything inside her and kill her. Small kittens make huge messes and always are training water in their fur. Then when they step into the litter, it sticks to them. Then they groom themselves and injest the litter. Make sense?

Also, rule of thumb regarding litterboxes and multpile cats: one box per cat, plus one. So if you have 2 cats, you'd want 3 boxes. 4 cats = 5 boxes. I have 5 cats and 7 boxes. I tried to NOT do the rule of thumnb for the longest time saying that was stupid.... but trust me, its a good rule!