Ideas for black on Pirc defense

5... c6 is less accurate.  5...  0-0 is probably better.  The main reason is you know you will play 0-0.  leave c6 as an option.  Your general plan is to expand on the queenside and fix or attack the center (or queenside).

A "defender" is one who wards off attacks and guards against assault.  It is also one who maintains, proves, and supports by argument and evidence, the validity of a theory in the face of criticism.

The Black Defenders of Pirc Castle are a 25-member Black opening group pledged to uphold the Pirc Defense.  Our motto: "Long Live the Pirc!".  We are looking for qualified Defenders.  A Black Defender must: a) play the Black side of the Pirc Defense; b) be rated at least 1750 in a playing category; c) be willing to actively participate in Team Vote Chess games; d) be 18 years or older; e) agree to abide by the ["Chess Code of Chivalry"].  If you are qualified, why not apply to join?

Adults are usually more dependable and mature.  That's all.