(1) Capacity to buy and sell is regulated by the general law concerning capacity to contract, and to transfer and acquire property: Provided that where necessaries are sold and delivered to an infant or minor, or to a person who by reason of mental incapacity or drunkenness is incompetent to contract, he must pay a reasonable price therefor.
(2) In this section-
"necessaries" means goods suitable to the condition in life of the infant, minor or other person, and to his or her actual requirements at the time of the sale and delivery.