For some reason, we are not communicating...
Are you saying that parents who for one reason or another allow their children under 18 to travel alone MUST purchase an escort fee and that will guarentee the kid is not bumped? A kind of insurance?
If so, THAT is wrong! and you are right, the airlines will jump all over that.. (in fact, upon refection I am surprized they don't have bump insurance for everyone,, that could be a gold mine! It would be unethical as Heck, but would fit right in with the mores of today's corporate America!)
What I am saying is an airline should not be allowed to bump anyone under 18 under any circumstances, whether they volunteer or not! One shouldn't have to pay for an escort to guarentee that. Do we need a law over this point? We shouldn't, but if it appears that the airlines won't take the social responsibility upon themselves, then yes, we do need this change!
If the kids must be housed overnight through no fault of the airline (overbooking is definately NOT a reason here).. should the airlines foot the bill? NO, of course not, but they should be prepared with a contingency plan .. and no. the stews, ticket agents, luggage handlers etc should NOT be included in the plan.
As far as the airlines not knowing the ages of the passengers.. I strongly disagree with you. I register all our DOB's whenever I purchase a ticket, verify with photo ID when check in, verify again when I go thru security, and verify again when boarding. I MAY be stretching it here.. but I would think that with all the times I (and my kids) need to verify our identity.. the airline should have a good idea of who is on board, and how old they are. I personally have never seen the manifest firsthand, but I do beieve that has all the passengers demographics on it. That would include their ages.
In my minds eye, there is no way the airline employee doesn't know or have access to information about a person she/he is bumping off a flight. and it shouldn't be anyone under 18.. or leave someone under 18 on board unattended. Pretty simple concept actually......