On that subject I know of very few teenagers with decent paying jobs that can properly provide what is needed for a monitor, also be able to follow through with all of the monitors other needs. Yes there are adults that dont do a very good job with them, but by many adults ability to provide for themselves and being a stable supplier of a secure home, and environment they are far more likely to be able to keep a lizard that can live 10-40 years. The problem with kids or even teens keeping monitors isnt so much that mom and da have to foot the bill, its the unstable lifestyle, and possibility to be changing lifestyles, locations, schools, and careers quickly that makes most kids or teens have difficulty rehoming a monitor.
On this forum alone Ive seen many teens argue this, but most are looking to find what to do with the monitor when they go to college, or join the military, etc.
Something to think about.