Is it true that infant care teachers will ignore babies crying because they have another baby to handle and they have practice not to carry babies too often. Is it true and is it applied to all infant centres?

My best friend sends her 9 month old to infant care somewhere in Jurong and she says the staff are particularly attentive. She has observed them for some time and she has no issues with how her son is treated. That being said, her son's "class" is pretty small (about 8 babies) and there are about 3 teachers at a time. I think it's not right to generalize like what the mommy above said. Best to do your research accordingly before picking a school or child care :)