My daughter will be five in March and still sucks her thumb. Sucking her thumb really calms her down and it’s really a comfort for her to be able to do so. She was a baby that never wanted a pacifier and she only started thumb sucking at the age of 2,5 years. I remember quite well that it was summer and she started being interested in the babies that were in the day care nursery. Some of them slept sucking their thumb and out of nowhere she started doing …