This is a loaded question! From the standpoint of an adult, I can see how teenagers in Shakespeare’s work are similar to today’s teenagers. In Romeo and Juliet, we are introduced to two wild, irrational kids that make some really poor choices without considering the long-term consequences of their actions. In my experience with modern teenagers, many (but not all) often cannot grasp long-term consequences and firmly believe they know everything. Even I as a teenager thought this way!
Additionally, it has been argued that Romeo and Juliet set the stage for the archetype of the rebellious teen to emerge. In the modern world, adults simply expect teenagers to be rebellious. We expect them to be contrary and difficult. Because Romeo and Juliet are very rebellious in terms of society’s expectations and their parents’ expectations, this play has easily become relevant to the modern day world. Since Shakespeare’s time, many pieces of literature (including films and TV shows) include a “rebellious teen.”
I’m interested to hear the arguments others have about this topic!