Id say it depends on the age of the child. But for a child of like 3 or older, id say they r ok! Like thers have suggested, you could break/bite it in half for them if you r still concerned. They do melt in your mouth if you sick on them.
I think it would depend on the age and how good they are about chewing their food. When I was a kid I used to suck on them and let them melt because they lasted longer. My parents would challenge us kids to see who could make the candy last the longest. Was a great way to make sure we didn't eat the candy too fast. You can also cut them in half.