I am a worrier, she is four and is mostly indoors as we don't have a cat flap and when you let her outside she meows to be let in after 10/15 minutes! She potters round the garden and occasionally goes next door but generally is happier inside. She has never hunted in the 18 months we have had her, aside from patting at butterflies or insects.
She seems happy enough, sleeps a lot, comes to me for cuddles and likes to sit on/next to me, she purrs a lot. She doesn't really play much though? She has toys and bits of scrunched up paper but she doesn't seem that bothered about them. She will bat at a bit of string but loses interest quickly.
We tend to keep her downstairs because of the layout of the house and I worry that she is bored if she doesn't want to play. Everyone says how friendly and happy she is and she will come to greet you when you come in and have her belly tickled and she is desperate to be - comes to sleep on our bed with us when she can, and always always sits with us. I would hate her to be bored :(