Who is adult in case of air travel?

For airlines, 12 and above pays the full adult fare but they are not adult yet. 16 and above I think, because I remember having to wear the young travelers' tag when I was 14.Who is adult in case of air travel?
Usually it's 12 and above for airfare. To travel alone, some airlines say 14, some say 16.Who is adult in case of air travel?
Airlines consider you an adult at 15 years of age. That's when you can finally sit in the exit row.





At 12, you pay a full fare though, but if you were traveling alone under the age of 15, then you would be made a meet and assist because you're not a minor by the airline's standards anymore
the adult that adult in case of air travel, duh!

pores