How to get toddler to wear mask

I bought cute reusable masks for my son (dinosaur / robot) and mask lanyard for him. I get him to choose the design he wants to wear for that day. He will happily hang it on his neck but wont wear it until he reaches school. The teachers will encourage them to wear their mask. Dont force your child. Let him slowly adjust to it, even we adults have the tendency to remove it whenever possible. Can get toddler size (XS) masks from “Forever family” - the same merlion mask from the ndp bag.