We're all different.
I had a loss at 7 weeks on a business trip, it happened in the night and I got up and gave the planned presentation the following morning.
When I had a loss at 17 weeks, I had a week off, and self certified, even though the hospital gave me a sick note for a fortnight.
When DH's father died very suddenly, he had 10 days but much of that was looking after his mother.
When my father died, I had a five and a half year old and a two year old. They were my work and it couldn't stop.
I have said to countless staff over the years in quasi public sector organisations where there is full pay for six months then half pay for six months "to get themselves signed off for bereavement related stress for a few weeks if they need it and when the compassionate leave runs out". I also say, because I have to, that if they disclose my advice I will have to deny it.
Compassionate leave where I work is usually three days but at the manager's discretion. Where it gets tricky is when Joan's mum, who she has looked after for 20 years, dies and you want to say to Joan "have a month, be kind to yourself", but you also have Peter who has actually had six grannies and numerous aunts who brought him up in the background and you know that Peter will bring a discrimination case if you offer him less than Joan.
I have said occasionally to have a few days off for dogs and cats
It's all about being human and considering things on a case by case basis. We are big enough to have all the public sector type benefits but small enough to have a bit of humanity.