I start my course next month at BA.
Age: 29 (started at 20 as FO)
At time of interview:
5000+ hrs total of which:
4000+ on jets (B737 and A320) and 750 hrs on F50 (turboprop).
1000 hrs as captain on A320 (my current aircraft.)
I asked and received the B777 as my start type in BA.
I had people of over 40 in my assessment group, do not know if they passed though...