First field trip, need advice ???

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Good morning so I just got informed yesterday my daughters new day care is taking them on a mini field trip only like 20min away but when I asked about the car seat situation and the director stated she’s not required to be in one 🤔 mind you she is only 3 years old. I would really love for her to go but I know I can’t leave work as I just started in august and undergoing specific training that they dislike for me to miss. As of right now I don’t have family where I live and seems no one can go with her, would u let her go on the trip???