Almost all of the recipients of quilts I make do not go to fabric stores so they have no idea if a fabric is "outdated" or not.
I took about 45 quilts to the family reunion, and most had older fabrics in them. Did not hear "would be nice if it had modern fabrics" once.
One of the local fabrics shops has been going out of business this summer. I bought some at 25% off, more and 50% off and when they hit 75% off I bought over $1,000 worth, including a lot of backing fabric. I don't think any of the last group was "modern" fabric but that does not bother me in the least.