It is covered through a third party insurance agent.
Not many ppl having babies these days but everyone pays the tax... (Not saying your wrong)
For 2019:
Maximum benefit is ~70k x 10/52 x 50% = 6.7k
Maximum premium is 108
So they're assuming, on average, around 1 in 100 employees will use it in a given year to the fullest. Obviously most people won't be eligible for it at all, many who will won't be using it for a variety of reasons (e.g., their employer has a similar plan, they're eligible for statutory disability, they won't want the salary reduction, they won't use the full period). If you assume about the average person:
* Will use it 2/40 working years
* Half will use it altogether
* Avg will use it for 5 weeks
You're pretty much at self funding adding expenses to the mix.