According to the British Dental Association, there are deciduous molars, all of which eventually fall out by around age 12, and permanent molars, which do not necessarily fall out. All the deciduous molars appear by the time a child is around 2 1/2 years old.
Mascara: Get yourself a pre-wash stain fighter like Shout and apply to the stain using the brush that comes with the pre-wash. Let it sit for about 10-15 minutes, then rinse with hot water. Launder the garment immediately either by hand or in the machine (whichever is most convenient for you).
Yes the colour does come out from skin and hair. In rare cases the colourant may adhere to bleached or previoulsy damaged hair. Should you find colours residue in you hair this is not a dye, but rather small colour particles that adhere to the hair and will disappear with repeated washing with normal Shampoo.