Dragoons not allowed to use Stun? (Low level Dungeons)

[Nyalia]

(Side note: Silence Resistance DOES exists. Silencing "High Voltage" or "Dragon's Voice" can fail if there's too many Paladins using "Spirit's Within" and too many Bard's using "Blunt Arrow."

^ This is true. Resistance exists for all status ailments, both on enemies and on players. I believe stun resistance just takes longer to fall off after a stun than the others, and silence works just fine as long as it's not fully resisted. The silence duration going from 1.5s to 1s to 0.5s to 0.1s is meaningless - you're just using it to interrupt, which it does in all cases as long as it wasn't fully resisted. When you chain-sleep a mob though to keep it out of a fight, each subsequent sleep is much shorter, and eventually they just fully resist the sleep. Bind is the same way if you've ever tried to chain-bind a mob that you're kiting.

You can really notice status ailment resistances on players (even outside of PvP where it's obvious) when fighting Hunt marks that love to spam things like sleep or disease or petrify or bind - each subsequent hit has a shorter duration. When petrified for 30s by Maahes, and he petrifies you again when it gets down to 5s left, it refreshes back up to 20s, not to 30s.

Debuffs that aren't "status ailments" (the set icons) don't build resistance, and I don't believe poison does either. Some mobs also have fixed-duration effects, like the stun from the first boss of Sastasha HM, that you can't resist and always last the same duration.

[StouterTaru]

^ This is true. Resistance exists for all status ailments, both on enemies and on players.

Then why can I get hit with a full 20 second gravity 10 times in 30 seconds?

[Ultimatecalibur]

Then why can I get hit with a full 20 second gravity 10 times in 30 seconds?

Nyalia is slightly off. All 8 of the common status ailments (Poison, Stone, Heavy, Silence, Stun, Slow, Sleep, Blind, Bind) have resistances and therefore diminishing returns. The "mounted" status disables the diminishing returns effect on Heavy. Other rare or enhanced status ailments (Poison#, Stone Curse, Leadened, etc.) are not effected by resistances so therefore can not be resisted.

[Almalexia]

Then why can I get hit with a full 20 second gravity 10 times in 30 seconds?

Chocobo is different. It shouldn't be, but it is.

Also,

Another reason is a great deal number of bosses are stun resistance. So, to Stun or not, it does not matter. However, using your stun skill is the DPS increase.

And for the tank who dislike Dragoon stun stated above, I see absolutely no reason why the Dragoon need to hold their stun skill ( lose their optimal DPS) in the fight where to stun or not, is not even a matter???? Why you have to stun them when they can just be taken down an fast??

Exercise your brain parts when it comes time to use stun. If a mob is immune, it doesn't matter much. But think about an avoidable OHKO, knockback, or other stunnable attack that would incapacitate or otherwise disengage you from the target.

Don't you think you'd do MORE DPS if you didn't have to run away or dodge a mechanic because your friendly tank stunned that for you? Do you really think an ability on a 30-60s cooldown that does slightly more than an autoattack is worth blowing when you could use a real GCD later on when someone else stuns the mechanic for you?