My "else" statement does not work. It keeps showing the "if" statement's alert even if it's below 14

function buy() {
  let name = prompt("What is your name?");
  let age = prompt("How old are you?");
  
  age = parseInt(age); // This is the part you should add.
  if (age <= 14) {
    alert("Hey, " + name + "! ? Have fun buying on our site! ?");
  } else {
    alert("Sorry, " + name + "...? You are too young to buy on our website. You might have to ask your parents. ?");
  }
}

let buyButton = document.querySelector(".buy-button");
buyButton.addEventListener("click", buy);

<button class="buy-button">Buy Button</button>

function buy() {

  let name = prompt("What is your name?");

  let age = prompt("How old are you?");

  if (age >= 14) {

    alert("Hey, " + name + "! ? Have fun buying on our site! ?");

  } else {

    alert("Sorry, " + name + "...? You are too young to buy on our website. You might have to ask your parents. ?");

  }

}

let buyButton = document.querySelector(".buy-button");

buyButton.addEventListener("click", buy);

<button class="buy-button">Buy</button>