Age 23 will not be an issue at all. There are VERY few airline pilots who will have that problem, and congress is not going to go out of their way for a handful of votes.

Since the ATP requirement will not even take effect until three years after passage of the law, almost every young FO will be 23 when the time comes...it's possible that they would ALL be at least age 23.

The ATP requirement WILL affect future new-hires...they will not be able to skip college, go to a puppy mill, and get an immediate airline job. Oh Darn.