I am not arguing with selfish people, just from your comments alone it is obvious that you can't think of others first its all about you, I deal with your type every day, can't reason with you at all, sleep well!
A parent thinks her child would be more comfortable and safer in his own seat. A parent doesn't want to pay for said seat. It's obvious such a person doesn't put her child first. I can't reason with a person who agrees his child would better off in his own seat but isn't willing to pay for the seat. I don't know how a parent can sleep well, knowing she's risking the safety of her child just to save a few dollars.
Sorry but a parent who decides to save a few dollars by taking advantage of the current rules regarding lap babies has no right to expect airlines, or other passengers, will give them something (for free) that they chose not to purchase.
How often do we see that here - if someone isn't behaving the way a poster would like, the other person is selfish? 
