You have learned a lot for 3 seasons. Do not forget to read some tutorials on forum, they are useful for everyone.

Quote Originally Posted by legendqueen View Post

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4. Player Development
- I will never buy any scout player, they can only be useful for maximum of 2 seasons, 69 tokens for that is anything but reasonable for me. And yes, some scout players are even useless in the very first season they show up.
- My team has:
+ 4-5 players at 18-19 year old, they are the core of my squad.
+ 7-9 players at 30+ year old, after one season playing for me, they will be sold.
+ The rest are 20-21 year old players, they can serve me for 2-3 season before getting put in auction.
+ I never buy any 22-29 YO (unless they are really good with SAs)

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Well, "do not judge book by its cover".
You are very close to the point, but...
Experienced player usually do not buy players whose age is 30+ because later it is very hard to sell them.
I'm focused on 2 type of players on market, I choose them rather by value (and price on auctions) than by age only;
1) fast trainers - very expensive players whose age is 18-20, growth is very fast, that is why they are good on long term
2) cheap players - players which have slow growth, but good quallity. You can also find age 20 players which are very cheap due their very slow growth. They usually play 1-2 seasons in my team before selling. I buy such players in order to save money for fast trainers.
For example, on level 10 fast trainer costs ~30M while cheap player could be found ~10M

Good luck, have fun!