A: Yes Cornelia backpack is good size for pre-teens and teenagers.
A: Yes, it does have bottom sponge protection.
A: You can comfortably fit 15.6" laptops.
A: Please see the 5th image.
A: The laptop pocket is a part of the main compartment.
A: This item weighs 3 pounds.
A: This backpack weighs 1.3 pounds.
A: Thank you for the question - it is suitable for 10 years and up.
A: Yes, the backpack is big enough to fit shoes in.