I'm kinda new in this tanking field, I prefer dd instead of tanking/healing in mmos before this.
But for this game however really made me attracted to being a tank.

For me being in a DF group is like falling backwards and hopefully they'll catch you.
And same goes for the others in the group too.
It's a two-way street. I'll catch you as long as you'll catch me.

Most of the df group I encountered until now are really nice.
Haven't been actually blamed that any complication happened in the dungeon is my fault.
If anything, we all like apologized to each other and moved on.
Guess it's my luck too maybe.

But "Tank is leader" thing? I'm not so sure lol.
Honestly, I hate leading, andwalkinginfrontofthegroup.
Had to suck it up for tanking sake.
But just because I walk in front, doesn't mean I'm the boss. BI

So... Tank mentality? Idk.
Depends upon an individual really.
Different people think differently.