I would say by the time your daughter is 5 it's time to let her walk on her own. Still, there will be times when she'll want to sit in a stroller because she's tired. I remember when we went to Disneyworld my brother was 7 and my sister 10 and I was pushing them around in a stroller because they were so tired! It's no one elses business and young kids need a break or they'll be very cranky.

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