Attached earlobes or unattached earlobes dominant?

It was said earlier that, "Unattached earlobes are the dominant trait, twice as many people have unattached earlobes compared to attached." There is not actually any real proof that unattached...

Freely hanging earlobes (unattached) is the dominant allele.

Attached earlobes is a commonly referred to example of simple genetic dominance. The allele for freely hanging earlobes is dominant, while the allele for attached earlobes is recessive.

yes they can

yes, as long as relatives beforehand have unattached earlobes