Leebo
at 2021-06-20 00:50:13 UTC
Attaching で to a noun with 遊ぶ means it's the thing you are using to play. So yes, と means "with" in the sense of "together" here, and is appropriate for attaching to a person.
Log in to reply.
Particle for 遊ぶ
If the younger sister played with another person, would the particle used still be で?
Or, could it be と?