Lack of Consideration. 1  Past consideration is not valid. Something that is already done is done, and it does not change the legal position of the promisor. 2  Preexisting duty does not count as consideration. 3  An illusory promise, or one which the promisor actually has no obligation to keep, does not count as consideration. The promise must be real and unconditional. This doctrine rarely invalidates contracts; it is a fundamental doctrine in contract law that courts should try to enforce contracts whenever possible.
In parts of the world with more conservative social traditions, the average would be considerably higher. i had mine when I was 13 but idk if thats the average age. I would the average age would be from 12 to 15. I had mine when 13, so I would say that is around the average age, but that is just speculation.
According to a study by Columbia University, underage drinkers account for 11.4% of all of the alcohol consumed in the U.S. The average age teen boys first try alcohol is age 11, for teen girls itâs 13. Nearly 10 million young people, ages 12 to 20, reported that they've consumed alcohol in the past 30 days. Teens who start drinking before age 15 years are 5 times more likely to develop alcohol dependence or abuse later in life than those who begin drinking at or after the legal age of 21.