eli5 why rna primer is used in DNA replication instead of DNA primers?

Question

eli5 why rna primer is used in DNA replication instead of DNA primers?

In: 2

Answer 1

DNA polymerase can only add onto a 3’ OH (which is what a primer provides). But RNA polymerase doesn’t need a 3’OH and so doesn’t need a primer.

So your cells cant use DNA primers because they would need a primer to prime the primer.