I joined a meetup group and they advertised a "Playdate" and gave the date and time (that was all it said). I got there and it turned out they just wanted me to drop my child off there and leave! Should that be a red flag? Note, I do sometimes drop her off, but at a licensed day care facility that I use in emergencies. She is still in pre-school. Also, I had assumed playdate for toddlers meant the parents would join in. Maybe I am just totally off in making that assumption?