This is different in Utah because it is legal as long as you are 65 years old and above. Well, there are so many angles that you can see with regards to the issue knowing the fact that the age is quite not that sexually active and there is a very low chance of getting an offspring.
Here are the grounds and conditions for marrying a cousin in Utah:
(a) both parties are 65 years of age or older; or
(b) if both parties are 55 years of age or older, upon a finding by the district court, located in the district in which either party resides, that either party is unable to reproduce.
It is clear that the reason for allowing marriage at that age along with the conditions is that both parties are not able to reproduce because reproduction can be dangerous and the child will suffer. Though this is applicable in Utah, not all states in America are conforming to it. Majority of the states aside from Utah are against marriages between first cousins.
Looking at the issue will cause you to give your own opinion. Are you in favor with this? There are people who are and there are those who are looking at the issue something so insignificant and just a waste of time. Well, you have your own opinion. Voice out.