Im sure there are some very experienced captains on this thread and would like to ask you what you think in having such a young FO next to you?
No different to any other F/O in my opinion. Obviously when you are new, you will be like any other new F/O in that you lack experience. You've passed the training and proved you have the ability to be there, now you need to build the experience and route knowledge, whatever age you are.
Good luck all you young guns!
PP