Ask the vet.
It depends. They certainly wont be aggresive, but if you do, make sure to spay and nueter them.
yes. I had a 2 year old guinea pig and a 6 month old and the were great together.
no, g pig moms don't eat there young
The children should be nice to the guinea pig and make sure you ask if it is known for biting
Yes, they do learn faster than the older ones.
10 weeks
yes
This isn't a very good idea. A young guinea pig will still have the scent of its mother, so there's every chance the father will try to breed with it, or even fight with it. It's better to put a young guinea pig in a separate cage completely.
A guinea pig is 'un cochon d'Inde' in French.
a mother guinea pig feeds her young milk she shows them how to find food and water (the water bottle and food bowl) and she shows them how to tell if there is a threat.
You dont have to, unless you are keeping it with the opposite sex.
no, unlike hamsters the adults will not harm the young.