Readers who have kids—or who remember being one—know the importance of coming-of-age birthdays. Turning 13 means shedding the kid stuff and acting more like an adult (or at least attempting to). Turning 16 in most places means getting a driver’s license, while turning 18 gives us the right to vote. We can legally buy alcohol at 21.
Can't Buy Me Love is a movie from the 1980s about a nerd who is desperate to improve his social status. In so doing, he makes an investment. He hires the most popular girl in school to be his girlfriend for a few weeks, believing this will permanently elevate his standing with the popular clique at his high school.