I have got tortoises, (whitei) and they are not hard work but not easy to keep.
1. I bet the one she works with is a sulcata or a leopard, they are not types which hibernate.
2. Hibernation is not dangerous, keeping the tortoise awake all winter is because the ones which hibernate in the wild are not designed to do this.
3 Tortoises can go outside when its warm and sunny but they need a LARGE SECURE enclosure with suitable plants as many are toxic to tortoises. Tortoises can both climb and dig and move FAST
They must be protected (kept apart from) from dogs who tend to view them as chew toys.
After bad husbandry (poor care) dog bite is the single biggest cause of tortoise death and illness in the UK. One bite is enough and it can be done in seconds
Tortoises that are sold through shops and dealers are farmed in europe and imported. They usually have worms and may also have other more serious diseases. They are imported boxed and chilled like meat and i wouldn't want to support the trade. If she wants one she should find a reputable breeder. She should be prepared for the third degree on care and housing. If she gets "here's a tortoise, give me money" she should decline and leave, no one who cares for their tortoises will do that. Baby tortoises live in heated well lit tables, think of a book case flipped onto its back with the shelves removed and stood on a table, she will need to have room for this and be able to afford the heat and light, Its important to not allow the babe to eat to much as they will outgrow the shell and become deformed
loads of good advice here
http://www.tortoisetrust.org
and here
http://www.tlady.clara.net/id16.htm
any more questions, give me a shout