Dear ALPA, ICAO, IATA:
Drop unrestricted ATP age 2 years from 23 to 21 and R-ATP to 19.

- cheaper labor for our corporate overlords
- senior gets to mentor them from 2 years earlier (MAXIMUM MENTOROCITY)
-Younger FOs will help us aging folk stay up with the latest drip and slang
-Time value of money. Early access to legacy pilot 401k contributions = money grows more on its own = less old, angry A holes crying about being "made whole".

If an 18 yr old can be a CFI acting as the PIC of an aircraft with an inexperienced student on board effectively flying single pilot, why can't a 19 yr old with proper training be a SIC in a highly scripted and controlled environment under the supervision of an experienced captain?