Mummies, at what age do you let your lo use normal bolster instead of those beanspruts pillow or bolster?

Since infant, my girl didn't liked to use any beansprouts pillow. She always toss it Away. When she is about 10 months old I gave her a bolster and upgraded to a bigger size at 3 years old. Sometimes, she (3.5years old) she will snatch mine to use.