Using soother for naps

Am I creating bad sleeping habits for my lo? My lo is almost 4 months old and is used to us rocking her to sleep for nighttime and naps. She recently started taking a soother so now we give it to her for naps and she puts herself to sleep with it. I eventually want her to fall asleep independently so is the introduction of a soother a bad sleep habit/association? On a side note I’ve recently started wfh so it helps lessen the time it takes to put her down for naps.