Warning! Spoilers ahead for Young Sheldon season 6 episode 2. Young Sheldon has finally fixed its long-existing problem about its depiction of Sheldon (Iain Armitage) and Missy (Raegan Revord). George (Lance Barber) and Mary's (Zoe Perry) twins have been fairly busy trying to make sense of the string of changes in their household. As their current arcs are now dictated by what's happening to the rest of the family, Young Sheldon season 6 still finds a way to move forward with their personal stories, including resolving a worsening problem with how they are presented on the series.
In Young Sheldon season 6 episode 2, "Future Worf and the Margarita of the South Pacific," Sheldon and Missy come up with ways to help their parents financially. George and Mary both lost their full-time jobs in the Young Sheldon season 5 finale, and while Mary has landed work at the local bowling alley, George has yet to get another stable gig outside of him doing part-time work at Dale's (Craig T. Nelson). Throughout their attempt to earn money, CBS incorporated some dialog that addresses how much Sheldon and Missy have grown.
Due to wanting to keep it on the air despite signs that Young Sheldon’s inevitable end is near, the network has been slowing down the passage of time on the series. So although Sheldon's Iain Armitage and Missy's Raegan Revord are both 14 years old in real life, they are currently playing 12-year-olds on The Big Bang Theory spin-off — something that is getting difficult to maintain given their respective signs of puberty. Armitage's Sheldon voice has significantly dropped, which was addressed in Young Sheldon season 6, episode 2, when Sheldon acknowledged the change as well, gleefully saying that callers no longer mistake him for Mary when he picks up the phone. Meanwhile, as Missy was trying to land a job at the local comic book store, she was told that she must be 14 years old to be hired, to which she pointed out that despite being younger, she actually looked the part. Young Sheldon admitting that the twins look older than their supposed ages sends a message that despite all these biological changes, they are still 12-year-olds in the series; the characters just hit puberty earlier than their actors supposedly. More importantly, this allows CBS a little more time to stretch out its narrative further.
What Grown-Up Sheldon & Missy Means For Young Sheldon
Prior to Young Sheldon season 6's premiere, executive producer Steve Holland already confirmed that the ongoing year will see Sheldon and Missy as full teens. This means that CBS can continue tackling more serious subjects moving forward now that the youngest members of the Cooper family are no longer kids. Sheldon can deal with more mature issues similar to Paige's (McKenna Grace) Young Sheldon season 5 woes. Missy, on the other hand, can open up herself again to puppy love. Collectively, George and Mary no longer have to sugarcoat things for them when the family is dealing with some ugly. Aside from these, however, Sheldon and Missy becoming teens is the biggest indication that George's death is nearing. It can be remembered that the Cooper patriarch died when Sheldon was just 14 years old, based on his own recollection on The Big Bang Theory.
It's uncertain what the far future looks like for Young Sheldon. For now, the family show is confirmed to run until season 7. This gives it plenty of time to further explore Sheldon and Missy as twins and individually. If anything, the pair's aging can be good for its storytelling as its narrative can also evolve to become more complex as the Cooper twins grow up.
Young Sheldon season 6 airs Thursdays on CBS.