[unglaublich]

Currently children <11yr get a 20-50% discount/subsidy for a seat. So just rectify it to a 100% and give the seat as a bonus instead. Everyone happy?

[brummm]

I have never seen this. For all flights I have flown recently, the price for a kid and an adult is the exact same.

[mothballed]

Honestly I would be happy if the 5x the price, and I'm a parent. I hate flying with a kid and it would let me convince the wife to drive or take a boat the next time.

I basically only fly with a kid because everyone else is willing to subsidize the massive externality I impose on them.