Your age?
Gender?
How would you feel if someone pulled out a chair for you in a situation you could easily do it yourself?
How about opening the car door?
Regular door?
Do you expect or practice this attitude?

I find I like if someone holds the door for me if they just passed through (I do it as well), but it's annoying if I have my chair pulled out or am expected to sit in the car to wait to have my door opened. I have perfectly functioning hands.