Dorian is a commoner kid. Normally after he awakened, the only way for him to advance was to find a rich thigh and become their servant. Only this way would he have a chance to grow fast. He could try his luck in the forest but the forest is filled with monsters and bandits. So venturing into the wild is not a good thing for the newly awakened.
Most of the noble children would have started training their bodies since young. After awakening, they should have started to hone their weapons and skills. Even then there are chances of deaths. So they would have guards who would help the kids improve their levels.
Only a few families like Frostwolf, would send their children into the wild without guards. Even though they send them alone, these children would be given sufficient food and weapons to protect themselves and survive in the forest.