In his youth, he made a name for himself as a libertine.
道楽者 emphasizes indulgence in hobbies or vices for pleasure, often with a less severe moral judgment than 遊蕩児.
Composed of 遊蕩 (debauchery, dissipation) and 児 (child, person). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning of a debauched person.