Sorry I haven’t read the whole thread, OP. Just wanted to add that we’ve had guinea pigs, boars, for the last four years and they’ve always lived indoors with us. We have a large C&C cage in the living room, so they’re in there when we’re at work & school. Then in the evening, I clean the cage and they have a little run around the living room, hallway and dining room. They won’t go into the kitchen because they hate the feel of the linoleum and only like carpets!
We have a garden, but choose to have them indoors because it’s so cold (Wales), our neighbours’ cats may take a fancy to them and we just want them to be part of our family. They sit on the sofa with us and watch telly and they LOVE fluffy blankets! They’ll tell you when they want to go back to their cage to do their business, usually by wriggling and turning around, so we put them back. They poo lots but it doesn’t smell; for us, it’s the hay that smells most. I used to put saw dust or straw in their cages, but I found it hard to keep up with the waste, so now they have large blankets, and I’ll wash them in a laundry bag from Amazon that catches hairs when in the washing machine.
Ours have hay morning and afternoon, if I’ve not fed them by 4pm they’ll become noisy. They put their paws on their feeding bowls and stare at me.
They have nuggets once a day and then a mixture of carrots, berries, picked grass, broccoli. Every time I open the fridge or cupboard, they’ll begin squeaking, so I make sure I’ve some cucumbers to chop up.
I don’t buy expensive hideouts because they love cardboard boxes best, so I make dens for them out of a box.
One of ours loves cuddles, he snuggles into my neck and likes little kisses and head rubs, if I stop he puts his lips on my cheek... I love guinea pigs so much!