I have two children (11 and 13) that I want to put on a direct flight (domestic only). It's USAir. I want to avoid the $150 each way fee that they list on their website. Both my kids are well traveled and we have very little concern as long as we can drop them off at the gate and grandparents can meet them at the gate.

USAir has the following policy:
Children 14 and under:

• Children 2 – 14 can travel as an 'accompanied minor' with someone 16 or older.
• Children 5 – 14 can travel as an 'unaccompanied minor' on nonstop flights only and must have our assistance. The unaccompanied minor service fee is $150 (plus tax) each way.
  

Young adults (ages 15 – 17)

• A traveler 15 – 17 is considered a young adult and may travel unaccompanied on nonstop and connecting flights without our assistance.
• When the young adult checks in, we’ll make a note in our system so our personnel know that a young adult is traveling unaccompanied.

Can I lie and say my oldest is 15 (Since it's domestic I don't believe I have to show their passports) therefore allowing them both to travel without paying the $150 fee? Anyone have experience/advice/opinions on the matter?

Thanks in advance.