Once you gift a quilt it is no longer yours to be concerned about. Gift it, be happy they thanked you, showed appreciation and move on. What happens to it next is not your business.
People get so worked up over things other people do with. ( Their) belongings.
They * might* put a baby quilt away then give it to the ( grown up baby) for their first child who may use it all the time. They ( might) put a quilt away for awhile and get it out to use at certain times of the year. You don't know-- so, why begrudge them?
I have quilts that spend time tucked away in a trunk-- then the season changes, or my mood, or the room decor and I put away the one on the bed & get out another. The beautiful quilt you made may not fit in at the moment-- that doesn't mean they don't love it!