You have planted a seed. I am often amazed how some point I have tried to make is initially refuted or ignored, only to find days, weeks, or months later, that the person to actually doing what I suggested. I know it is hard not to see the results right away, but I would be willing to bet when situations come up at home and she is overwhelmed (as she must be) what you said will come back to her. It will play in her mind. There may be a small change or a big one, depending how strong she is. In any event, you've done the right thing. You may get more oportunities to restate your case as she frequently asks your opinion. Just stay cool, be prepared to give examples or share how you have had to make similar choices in your life and why.