He was used for a kidney transplant at the age of 5.

He started using a wheelchair at the age of 14.

He began using heroin at the age of 18 and has used it more or less regularly for five years.

What kind of eye cream should I use for dry skin at the age of 30?

He learned to use a Macintosh computer at the age of 80.

If they are not married, they will use a hair pin at the age of thirty.

They may be used on police-approved sites, with a permission slip, at the age of 16.

India Knight began to use her stepfather's surname at the age of thirteen.

He began using drugs at the age of 15.

Julie began using the name "Tawny" at the age of 12, on her own initiative.