No. Implicitly states that child must be at least 12 years old to use service.
No answer given.
PII collected may include: name, home address, phone number, and/or email address. If you purchase products or services you will have to provide additional information such as credit card number, expiration date, and shipping and billing address.
Non-PII includes: username, password, age, date of birth, gender, game/platform preferences; geographic location, information regarding your computer, information from cookies and clear .gif images.