As an only child, you may also be spared the complications arising out of having an overbearing, unhelpful, competitive sibling. It is no fun having a sibling like this, who hoards the attention of your parents, who in the eyes of your parents can do no wrong and is doted upon to no end, often at your expense. They may well walk off with much of the inheritance by virtue of being the doted one in the family. As an only child, you would be free of any of these complications.