I've just checked the help page for privileges and it doesn't mention accepting answers. There was a discussion on meta about how to encourage newer users to accept answers when appropriate but the privileges page doesn't tell them they can accept answers. If it did then this might point them in the direction of finding out more about what it entails.
To make this a specific feature request I would like to recommend the following:
(1) On the Help Center > Privileges page the bottom line for reputation of 1 could be rewritten to indicate that accepting answers is part of the process.
(2) On the Help Center > Reputation & Moderation page the sentence in the first paragraph which now says "Basic use of the site, including asking questions, answering, and suggesting edits, does not require any reputation at all", could include "accepting answers".
I believe this would contribute to raising the profile of this important part of the process amongst newcomers and cannot see any down side to these suggested edits.