Can babies get erections?

Any age can get an erection.

yes
seen it with my own eyes

Yep

Sure, common in infant boys when they are about to pee.

yes

just the boys. And they all do.

Yup. Happens all the time when changing their diapers.

yep

Yes.

Yes , they get erection when they get stimulated. Because they also have sexual hormones which is low level .

Only in the mornings.