[quote=@Rune_Alchemist]
[@Spanner]

Okay, small question since I'm curious and I haven't read Fairy Tail in awhile and I'm not really actively a part of the community, and this is the first time I'm hearing of it.

But why can't second gen slayers enter/use Dragon Force? Is it because of the Lacrima instead of being taught by an actual dragon?
[/quote]

No idea, it wasn't explained in the manga. They often enter a state similar to dragon force when fighting as far as we can see (with cobra going as far as growing scales) but no second generation slayer ever demonstrated possessing the ability to enter Dragon Force, be it by themselves or assisted by something external.