What about this:
Graduate high school at 17

Most high school grads are 18, but ok....

Go to flight academy, finish at 18 (almost 19)

How are you funding this ?

Go to a four year at 19 and CFI to help pay for expenses

How are you funding the four year. Remember you just funded flight academy. Is a CFI job available at location of 4 year. CFI will not pay for college, room/board, and leave any money left over for social life. You are only 19-23 once. Enjoy it.

Graduate at 23 and meet ATP minimum

You assume you will graduate at 23. Due to lack of class availability some semesters, etc, it may be 24. You may or may not fly 1500 hours in 4 years if you are attending a full time 4 year university program. Because "full time" is required to graduate in 4 years. Also 1500 hours of Cessna 152 time is not what the "next level" is looking for. They want multi-engine time, Part 135 time, etc etc stuff. The CFI who is at a Part 141 school or busy FBO is in a position to get multiengine time, make contacts, etc. Multi-engine time comes from the hangar customer dentist who needs his Baron taken to the paint shop, etc. It also means you have to be available when the phone call comes. This is kinda hard to do when you are in class or working on a paper.

Go to regional

You will likely (but maybe not) need 200-300 hours multiengine

Hopefully go to legacy or anywhere really with a 737 and 747 (I'm a Boeing guy)

Yes