like everyone else has stated, the more expensive youngsters are the ones who train faster in skill points. these players are good for power training and for training a special ability or a new position for them to play in. 18-21 are the fast trainers. usually a high priced 34 quality 18 year old is in about the 5 million + mark. I've seen a 6m player before that was 34 quality and 18 years old, so that is probably the maximum priced player for that quality. the point is, buy the more expensive youngsters, they train much quicker than the less priced ones.