I recently adopted two female guinea pigs. I love them very much, but believe me, they are a LOT of work. And expensive to own if you buy them all the foods they require. I am off to the vet for our first appointment and I am sure it will be expensive. I am an adult, but I'd advise people, especially young people, to be very, very sure they can take care of guinea pigs properly before adopting. Especially if you are in your parents home and they will be paying the food and vet bills. I sure wish there was a way people could foster for a while or help a guinea pig owner for a while, just to be sure they want to commit to this. I am devoting at least two hours per day to the care of my guinea pigs. Now, I am not complaining, just being honest !