Prescriptivism is appropriate for technical or legal discussions, where the specific meanings of words are hugely important.
Descriptivism is appropriate for casual communication, where it's fine as long as your intended meaning comes across.
People don't really have that debate anymore outside of twitter casuals, and it's dismissed with a wave almost immediately in this article, which then goes on to examine the complex grammar of "try and".
But this is part of a project by academics and the academics abandoned prescriptivism because it's not science. We don't have prescriptivist chemists or physicists either.