Why is this little boer doeling is getting a nudge from Mom?

The instinct of a Nanny goat is amazing. This beautiful red boer Nanny is nudging her baby doeling to get her up to eat. When goat babies are laying down napping the Nanny goat will wake them up to eat after a certain period of time.

From the time of birth to about a week old she will patiently stand and let them nurse as long as they want. This Nanny had triplets and she does this with all 3! Even I think it exhausting and I am just observing.