When you can legally sign a contract, which is 18 years old.
Someone can get an Icici credit card starting at age 18. Age should not be the main consideration when getting a credit card. Credit history and responsibility are important.
Whenever you start university (or, in America, college), is the correct age to get a student credit card.
at 36 years of age.
ANY age! The earlier the start, the better.
about age 12
Now-a-days they are making it more and more difficult to build credit at a young age. With the age laws on obtaining credit cards now it's almost impossible to build your credit strongly before the age of 21. I suggest opening up some sort of Macy's card, or Best Buy card with a Co-Signer. Car loans are one of the best ways to establish credit, so if you're looking to get a car in the near future or your parents are getting one for you, have them co-sign so you can help build your credit as well. At your age there isn't a whole lot of options because of how strict the banks are these days, but minor loans through company cards like best buy, retail stores, firestone/car repairs, are the easiest way to establish some credit at your age.
14
mostly at 10
Some have gray hairs as young as the age of 12, so for people, there hasn't been a set age on getting them.
It is possible to recover from a bankruptcy. You should start by getting a secured credit card to rebuild credit. After about seven years you should be able to find a standard credit card that will allow you to get a card.
When they start getting dementia.
The best way to do this is establish a strong business credit score with Dun & Bradstreet. They are the credit bureau for businesses. You start with opening trade lines with office supply stores, and gas cards. Then you can start getting larger trade lines with banks.