Is my request hard to you?

My dear...

I've just asked you to avoid smoking anytime you stay with your kids. We've discussed about your and my arguments about it. I know this request may be too hard for you to do, but please think about the health of our children (beg you so dear..).

We all know that we should give good example to our child, we must be aware about anything related to their health. I'm not asking you to stop smoking because I believe that the willingness of it should come from oneself. 

So... please listen to my wish..

Just for our children..