Age Verification On Checkout Using Birth Date Profile Fields

Hi Guys,

I am currently trying to set up an age verification during the checkout process ( not a pop-up bubble) using the CS cart profile fields. Simply just need the customers to use a drop down menu to enter their birth date. And set up a function where if they are below 18 an error message appears.

Do I have to purchase an add on or is it already available through CS Cart?

We are an online retailer selling alcohol so need to verify customers are above 18 years old.

Previously used Birthday profile field however the date of birth toggle was only showing up to 1943 - no recent years?? Anyone else had this problem?

I'm a university student interning so all help ( particularly simple explanations ;-) ) is very much appreciated!