back to the 15 year old not wanting to sign for you.
if you were 15 and were playing football and a club quite far away from where you lived was offering for you i think you would be flattered but would be scared of moving and stuff at a young age.
as for the 14 year old moving down a move to serie A. your american your 14 im 99.9% sure you cant speak italian and therefore moving to italy holds no interest for you. as he is american he may not even know where italy is (prepares for bashing)
and as for £5k a week for a youngster... i would be happy on 5k a month at any age.
£5k a month = £60k a year. now as far as i know from my uni lectures the average UK salary is just over £20k a year?