Gleedebuted to widespread acclaimin 2009.

The show’s many fans quicklydubbed themselves “Gleeks"and helped propel the show’s popularity.

Here are some of the things that only adults will notice when watchingGlee.

Naya Rivera as Santana on Glee

Warning: There are some bigGleespoilers ahead.

The fact that the show debuted in 2009 makes its commitment to diverse representation even more notable.

Inclusivity is one ofGlee’s major themes, and the diversity in its cast and storylines back that up.

Glee

New Directions is all about embracing differences, after all.

How did Finn believe he got Quinn pregnant on Glee?

Gleebrought us some truly outrageous storylines over the years.

Finn on Glee

Was her plan to just keep lying to Finn?

She must have realized that he would learn the truth at some point, right?

Rachel, for example, could benefit from therapy throughout the show.

Lea Michele as Rachel on Glee

Does anybody on Glee take vocal lessons?

With the exception ofSugar Motta, everyone in New Directions onGleehas a great voice.

What’s in the water at McKinley High?

Glee

How are a bunch of teenagersthisgood without some serious practice?

She’s nerdy and unpopular, and she’s a big contrast to popular cheerleader Quinn Fabray.

First of all, she has two dads who clearly support her and would do anything for her.

Lea Michele as Rachel Berry on Glee

Rachel comes from a fairly comfortable background and grows up getting everything she could ever want or need.

She’s also wildly talented and pretty to boot.

How does everyone on Glee end up with their high school sweetheart?

Kurt and Blaine on Glee

Rachel still ended upmarryinganother of her high school sweethearts though,Jesse St. James.

It’s cute that everyone is with their high school sweetheart, but it’s also completely unrealistic.

How was Will allowed to be a Spanish teacher on Glee?

YouTube on Glee

When we first meet Will Schuester onGlee, he’s a Spanish teacher at McKinley High.

How did Rachel suddenly become a bad dancer on Glee?

ThroughoutGlee, we see Rachel Berry showing off some pretty killer dance moves.

Lea Michele as Rachel on Glee

That’s why it’s so weird when she gets to NYADA and begins tostruggle in her dance class.

Why was the glee club so unpopular?

Why does everyone hate the glee club so much?

Tina on Glee

Its members are teased and constantlyhave slushies thrown at them.

Teenagers enjoy listening to music most people do.

How did Rachel and Kurt afford their NYC apartment on Glee?

Rachel and Kurt’s apartment on Glee

The loft in Brooklyn they settle on is gorgeous.

She also ends up having to repeat her senior year because she hasa GPA of 0.2.

She’s later revealed to be a mathematical genius andgoes to MIT.

Brittany on Glee

WhileGleethrows a lot of implausible storylines at its viewers, this is one of the hardest to digest.

In real life, she most likely would have been fired for some of her antics.

Everyone gets away with horrible things on Glee

People onGleedo some truly reprehensible things.

Sue on Glee

Most of the terrible things done by the members of the glee club go unpunished.

When bad behavior gets called out, it’s often forgotten a few episodes later.

How does everyone afford to travel to and from Ohio so much on Glee?

Finn on Glee

We’re talking about teenagers who are either in school or are working at low-paying jobs.

How are they affording to go back to McKinley High all the time?

Where the money to do this is coming from isn’t the only question we have.

Naya Rivera as Santana on Glee

We also want to know how are they finding the time to do all this.