Also it is said that they avoid having babies in the year of the tiger because they are afraid it will be a girl and they will not succed in marrying her since tiger women have similar energy with tiger man. But in the same time they rever tiger as a banisher of evil spirits of the house (family tree), so it just depends which half of the glass you choose to look at. All superstitions have universal truth in them and subjective perspective, and should be decoded as such.