In my country families usually set up businesses in which everyone can take part. That's why pizza parlors, coffee shops, restaurants and retail outlets are very popular family-owned businesses where I live. Let's take restaurant business as an example. The father can be responsible for bookkeeping or buying supplies and ingredients, while the mother can be in charge of preparing the restaurant's menu for customers, hiring and training the staff. Their adult children can be kitchen workers or waiters. Also, common family businesses in my country are those in which all (or most) family members can use their talents for a common goal. For example, several family members who work in the medical field, say, in dentistry, can come together and open a dental clinic.