Manufacturing manager refuses to allow his employee to bring her 7-year-old daughter to work: 'I do not want the liability.'

There's a big difference between bringing your kid to a boring office building and bringing your kid to a manufacturing plant.

There's a lot of debate about whether employers should provide employees with more childcare assistance. Many parents are forced to leave the workforce for the first couple of years of their kids' lives because their salaries are only enough to cover daycare costs. If workplaces wanted to retain young parents, especially young mothers, in the workforce, they could set up on-site daycare centers or help cover the cost of daycare for their employees. The problem with both of these options is that they are costly. Hiring childcare workers and setting up a daycare center within a company is extremely expensive, and most companies would only consider doing it if they are super profitable and have enough employees to make it beneficial for more than a couple of them. If only two or three parents are working for a company, there's no way their employer is going to prioritize subsidizing their childcare costs. 

But there are always exceptions to rules like this. If you work in an office, you've probably had a coworker bring their kid to work at least once or twice without incident. Emergencies are bound to come up, and sometimes employers are willing to make an exception to the "don't bring your kids to work" rule. A kid might be fine if they're hanging out in a conference room all day, but what if their parent is a nurse? They definitely shouldn't be allowed to wander around a hospital while their mom is checking someone's vitals.