Oladon |
The grappled condition imposes a -4 penalty to your Dexterity. From the rules...
CRB: Ability Score Penalties wrote:
Some spells and abilities cause you to take an ability penalty for a limited amount of time. While in effect, these penalties function just like ability damage...
CRB: Ability Score Damage wrote:
Diseases, poisons, spells, and other abilities can all deal damage directly to your ability scores. This damage does not actually reduce an ability, but it does apply a penalty to the skills and statistics that are based on that ability.
(emphasis added)
Ability penalties (and damage) don't cause you to become ineligible for feats.