The distribution of assets in a Last Will and Testament do not follow a required formula as to ‘who must get what’.
The maker of the Will can distribute his or her assets as he/she sees fit. There is no required breakdown to any person, child, sibling, etc.
The maker can provide all assets to a non-family member, a trust, a charity, etc. It is solely his or her choice.
To create a Will simply and for little money, see Standard Legal’s Will forms software.