When to take away the pacifier?

Elizabeth

My MIL always gives me 💩 for letting my son have one if he wants it which is usually just when he naps or is getting sleepy. Whenever she sees it she yanks it out and he starts to cry. He just turned 9 months so idk if he’s too old for it or if it’s still ok. I was planning on taking it away after his first birthday but now idk if I should do it now. Also any tips on how to do it?