The singular form or the plural form?

Nobody believes in superstition(s) in the age of science.

In this example, can I use both patterns?

I thought that “superstition” is used, in this case, to generalize the idea of “superstition”, so the singular form is preferable. But I’ve seen some example sentences which are otherwise. In my understanding, the plural form is used in the following case; Some superstitions are believable, but others are not.