Slave of pleasure

Freedom is merely consisting of doing what we want or in the absence of obstacles to getting what we want, that what we think of freedom, but not in Kant’s thought.
Kant has more restrictions and demanding notions about the view to be free.
if we look through, start to be very persuasive:
Kant reasons follow: “When we, like animals, seek after pleasure, or the satisfaction of our desire and the avoidance of pain. When we do that we are acting freely?
Why not?
We start acting as the slaves of those appetites and impulses.