if that is the case you would need to have max stats eg wis 20 to get the free train but no one train wis to 20 for a felar. It would be nice to know Ishuli whether you need both str and wise maxed to get the free +10/+10. couldn't this easily be tested by setting a felar to have 17 base strength and 17 base wise then become mature and check if they get the +10 for strength being max?

Mature : +1 strength, +1 wisdom
If you reach a new age while trained to the maximum of the stat mentioned above, you will instead gain some health/mana.