Dreaming of adopting a puppy is neither good nor bad as per dream meaning and interpretation. Dreaming of adopting a puppy means you will act emotionally without thinking properly and not considering the difficulties in future.
The dream of adopting a cute puppy and you playing with it means you will face difficulties in life due to decisions made without thinking about the difficulties associated with it.
Dream of someone else adopting a puppy means you will be forced to take up additional work which in the beginning will be good but might turn bad later.
Dreaming of adopting a puppy and it biting you or scratching you means your friends might turn enemy.