I suppose you are wondering what I’m doing in front of my mirror...
Well, you know I’m a lady of experience and in life I have learnt that it’s good to know a little about everything, even though we don’t mean to constantly use all what we learn.
Experience is like a treasure in a safe which we can take out to spend, little by little, when it’s necessary.
A curtsy is a gesture of respect, made by a lady when she bends her knees at the same time as bowing her head.
It’s not a very common greeting nowadays, but I’ll go to visit one of my old friends’ daughters soon and she’s a bit formal about certain habits....
I know how to curtsy perfectly, of course, but I have not done it for many years, so the problem for me is not to learn how to do it, but to test if my old back and my tired bones can still cope with that.
It would be a bit embarrassing, if after curtsying in an impeccable way I needed the help of a couple of valets to get back on my paws vertically....

Being only formally mannered is not a great quality by itself, but knowing a bit of etiquette and hot to behave politely has never damaged anyone.
On the opposite if we were also more polite in the little details of our daily life, even though nobody can see us, I think life in general would be better for everyone.
Good manners cannot solve the big problems of the world, obviously, but they can be a way to better cope with them.