Cuteness

Cuteness is an aspect that has evolved in quite a few planets as a measure of increasing the probability of offspring reaching adulthood as the adults are attracted to their offspring which lowers the chances of them abandoning or otherwise, performing a detrimental action which would result in the offspring's demise.

Immortality
Due to immortality becoming quite common in a large number of alien species, this has led to the aspect of cuteness becoming obsoleted at a random pace as offspring are not only hyper-intelligent which facilitates in their survival but, they are also immortal which prevents them dying at all which allows them to grow to adulthood without the need of this aspect.

Misconceptions
Some individuals have begun thinking that cuteness is not exclusively associated with the intent of ensuring the survival of offspring however, this is incorrect as the mental effects of cuteness or often caused by factors such as the design of the brain of the species themselves.

Another misconception is some people believing that all species have the same standard of cuteness which is completely incorrect as what's cute to one specie may seem completely different when it is presented to a completely different specie which has thus, shown that such traits are not universal across all of the available species.

The third and final misconception is that alien will somehow bow down to you if you're cute which is highly incorrect as aliens have evolved to the point in which cuteness has no impact on them whatsoever as their offspring does not require it to create a protective response from the adults and so, they have evolved to the point where they have no sense of actual cuteness except, in cases where they take over the bodies of individuals of species which do however, this is typically temporarily for the duration of the actual possession.