I can't find groups for dungeons, so I keep grinding.

From a friend:
According to the population data that was released, only about 22% of players are either Tank or Healer. Since you need one of each for a group it means longer (greater than 30 minutes) wait times.

Until SE allows more digital downloads to be sold, it will be harder to fill the dungeons under level 25. I think most of the Legacy players are now in the 40's, from the big number of players (and uber mounts/equipment) I see in Camp Dragonhead.