I would just make sure they know that when quilting there just be stitches at least every one inch. Other then that I guess we all learn from our mistakes.

That's a tough one. But in my husbands family a phrase "it has enough" would mean "let it go for better or worse".

I know how you feel. A quilt is a terrible thing to loose.

I would admire and highly praise the work they have done. I would not say anything about the lack of quilting and let them find out for themselves if the amount of quilting they have done is adequate. Some times the best lesson learned is the one we learn for ourselves.

Totally agree, this is one battle you should not attend.
We all have to learn from our mistakes.

Thinking back to when I first learned to sew... to be honest, I was not interested in cutting the pattern "thread perfect" as our teacher wanted. All I was going for was a finished product. The 1st quilt I made... I was just making. Now I shoot for things/patterns a bit more complicated. It's a learning process and your girls will learn. In the mean time, you've taught them another skill.

I don't know that I would say anything unless asked. When the quilts are washed and have issues then you might ask about the batting and offer suggestions at that point. Compliment them on a job well done. If you had worked with them on a routine basis you could have offered suggestions at that point. Now saying anything will be critical of them.

Good luck.

I wouldn't. She may get discouraged and give it up. She will learn as she goes.

I agree with this.

You told them. If you say any more you become a know-it-all or a nag. I would let it go. Live and learn. I'm one of those that didn't take criticism well. I learned a lot by my mistakes. Just my 2 cents. Bless you, you are in a difficult situation. I know it breaks your heart. Sometimes you can't help someone who don't want help.

I would take the blame: " Your quilt is just darling and I love it! I made a mistake when I bought the batting. I meant to get you one that had to be quilted farther apart. Because of my mistake when you wash it I'm afraid the batting will clump. It can easily be fixed by putting some quilting on the borders. The quilt is so pretty I will feel awful if it ruins in the wash. Would you like me to help you correct it?