Whenever they want
As young as 2 years old, can kids start wearing sunglasses.
umm really when u grew out of kids size or when your a teen!
Normally, we should allow kids to start wearing lenses after 16 years. If they are responsible and caring about the things, they can also start wearing under 16.
when you want to start wearing them
whenever
about 16
There is no age when girls should start wearing nylons. What a girl/woman wears is up to her, and there are no age restrictions on clothing, least of all nylons.
Age 7
Right out of the womb.
2 years old
This may vary but is often around the age of 12.