This goes as far as money too. When somone in the family earns money, it is shared with all family members. For example, when Liesbeth's colleague gets her monthly wage (paid in cash) she returns home and hands out money to whoever needs it. She holds on to the rest. Everything is shared.
There are, however, critical sidenotes to be made.
First of all, the division of tasks is very gender based. Women should do women things (cooking, washing,...) and men do men things (fishing, building,...)
Secondly, the hierarchy in a family is super important. Younger brothers or sisters should always listen to the older brothers - this is regarded as showing respect to older family members.
Lastly, there are some other very clear rules ... which we still don't grasp fully.
When a member of the family goes out, is home late or is ill s/he can be sure that any children are taken of by others. Food gets cooked and laundry gets done.
In our perception, this gives so much peace of mind knowing that people truly care for each other in a way that it is not "forced" or "according to contract".