In 1.6version new feature has been introduced - a checkbox that has to be checked which says "I agree conditions of use / Terms & conditions. "
But logically this checkbox is useless rather than just a validation check in the checkout process.
Because the purpose of asking online customer to check this checkbox is to ask the customer whether he/she agree with the online store's terms and conditions or not.
What if an online store doesn't not accept/refund sold items and after placing order a customer comes to know that there is a problem with the product and wants to return it now in this situation the website/online store owner will be in problem because website owner/admin don't have any proof that he can show to the customer that customer accepted terms and conditions before buying that project (ie. store doesn't refund/accept sold items)
what if website admin shows the option on the website to the customer and customer claims that this option(of accepting terms / conditions) was not there when he/she purchased the item ?
there could be many situations when admin / store owner could be in problem as there is no proof that customer marked the checkbox " I agree conditions of use / Terms & conditions" or not.
My suggestion - This checkbox option should be stored along with the customer name in the database , as well as in the order details and a single line should be there on the order.PDF invoice too something like "You accepted terms and conditions".