[OPEN] Check infant/toddler interrupts all attempts to care for baby

I really wish there was way to designate a sim as the primary caregiver. When there is one caregiver in the household, caring for an infant is actually not that bad; quite smooth in fact. But, as soon as there is more than one caregiver, it becomes problematic with each caregiver interrupting each other's actions and queues to check on infant. All while not actually caring for the infant, just passing the infant back and forth. Watching this is not fun at all!