This is a common question to which it is difficult to give a single answer. It is perfectly possible to make a will and allocate all the assets to the 5 children. The problem is that the deaths do not occur at the same time and there is a risk that the first one who dies leaves his property to the 5 children while the survivor who will probably survive for many years, changes his will afterwards and leaves only his own children as heirs. This creates a difference in regime that can be unfair. We should therefore think carefully before making such decisions.