One's success in the aristocratic society largely depended on systems such as the Oni, the Otoneri, and the Udoneri, which took your bloodline into account, and the children of powerful aristocrats were educated mainly at home, except during a short period in the early Heian period when such children were obliged to study in the Daigaku-ryo.
だが、実際の貴族社会の立身に大いに影響を与えたのは、蔭位・大舎人・内舎人などの血統に基づく仕組によるところが大きく、有力貴族の子弟は大学寮への就学が義務付けられていた平安時代のごく初期を除いて家庭における教育が主体であった。