I hate to be a Debbie Downer but here goes: My daughter's friend has one. She is 19 and got it when she was 17.
They are extremely fragile animals and if they aren't fed a special diet, they can go blind or die. She makes all of his food and freezes it in ice cube trays and he gets a cube every day. She also has to give him certain vegetables. Not sure which are good for him and which are not. But he can only have a certain amount.
He smells bad -- or at least his urine and poop do. The people who sell them outright lie to you. Trust me, I've smelled him. We have taken care of him when they are gone. You have to clean the cage every day or it will reek.
They are very difficult to socialize. You almost have to wear them in a pouch every day and play with them constantly when they're up or they will screech at you, bite you and run from you. Hers does all three and she has tried really, really hard to socialize the darn thing. (They've lost it in the house for hours at time because they run very fast and prefer to be climbing.)
The one thing that's really bad about them is that they are nocturnal. Hers wakes up every night about 7 or 8 p.m. and is ready to play for the night. She was in high school when she got hers so she could stay up late and work with him. Your daughter probably couldn't do that. And they really do sleep all day.
How about some fish instead?