1. Why don¡¯t we pull over and ask for directions?
2. Why don¡¯t we pull over and ask for direction?
(Do we have to use the plural form 'directions' or the singular form 'direction'? Are both OK? Thank you for your help. Have a good time.)
Colloquial form uses the plural, because the path might call for changes in directions as one goes toward the goal.
"Why don't we...."