At what age do children fall asleep on their own during lunchtime? I'm…

At what age do children fall asleep on their own during lunchtime? I'm putting them to sleep with a breastfeed and when I'm not there, I use a stroller, it seems like even if you wean them off breastfeeding, they will need a stroller until around 3-4 years old and still, in our age group, is it normal to say nothing? He started crying constantly.