Max age to
begin training is not specified... maybe 97...?
That was your question, right...?
xxx
Now, what maximum age to be hired by an airline...?
I would say some may consider candidates at 40 or 45 of age.
They probably prefer people in their 30s...
With retirement set at 65, that gives you a career of 20 or 25+ years as pilot.
No knowing what will be the situation then, expect 5 to 12 years to upgrade as captain.
xxx
Best of luck.
Happy contrails