ability score increase:
Your Strength score increases by 2 and you may increase the score of any other Ability Score by 1.
age:
After hatching, dragons usually spend about 8 years in their Wyrm phase, making their age range 0-8.
Size:
Medium
speed:
Your base walking speed is 30 feet. You can fly 30 feet in that time but must reach a resting spot between turns.
Languages:
If you are from Alithas, your first language can either be Alithan or Drakkan and you may choose any additional language. If you are an outsider, you may choose or make up another language as your first language instead and discuss this with the Dungeon Master.