You should not leave a mouse unattended outside it's cage; this is dangerous as it could get injured, escape or be attacked by something (like another pet). Inside their cage, a mouse can be left unattended for any length of time as long as the cage is clean and the mouse has enough food and water. A mouse should not be left alone too long if it is by itself (in it's cage) - mice are soical animals and therefore need the company of other mice.
yes they are as long as you get them from the store. you can get in trouble for having a wild mouse as a pet.
2-3 years
While I'd never recommend leaving a pet unattended for that long, rabbits should be fine so long as you leave sufficient dry food (which won't spoil) and ABSOLUTELY make sure that there's sufficient water. Ideally, you'd have several separate water bottles available to ensure that a leak or faulty water dispenser doesn't cause the rabbits to die of thirst.
You can leave your pet rat alone for 2 days but it is not advisable; attention is key.
Yes, pet mice are aloud pretty much everywhere.
no.
Well if your not sure get a vet or someone you know to help you if it's possible. Mice nails shouldn't grow that long.
the pet shop and they get them from breeders
Most mice like to be pet down their back and behind the ears. But do not pet them if they dont like to be petted.
Your pet mice likely wont eat out of your hand because they are scared of you. Mice aren't exactly the kind of pet that's going to cuddle up and love you.
You can name your pet mice anything from Harry Potter to rex, Kevin Rudd to Flower. It's your pet it's your choice.
samething as you take care as pet mice