Sheldon and Leonard live together out of convenience not for financial reasons. Sheldon has said in the past that he wouldn't have a roommate if he could afford the rent. Penny on the other hand who lives alone on a smaller wage, is seen always struggling to get by, living paycheck to paycheck.
Fans of the hit sitcom will know that Sheldon (Jim Parsons) had a first roommate, Sebastian (Oscar nominee Steven Yeun), prior to Leonard (Johnny Galecki) moving in.
Sheldon never met Leonard, Howard, and Raj until they were all around 24. Penny didn't move into the building until Sheldon and Leonard were both 27 and have been living there as roommates and best friends for three years; Penny was only 21 then.
It was the one titled The Staircase Implementation. He moved in with Sheldon in 2003.
My take is that at the time when he was interviewing for a roommate, he was just freshly starting out at his job so the rent was too expensive for him to afford alone, but as his work in the university gradually secured him a steady income years later, he earned more than enough to live alone, but he simply chose not ...
A: A roommate agreement is a contract made between the residents of a rental unit. The agreement outlines the terms, conditions and responsibilities agreed to by each of the residents. Roommate agreements are sometimes referred to as roommate contracts.
It dictates what Leonard has to eat each day of the week, what TV shows he is allowed to watch, whether he has a girlfriend stay over, that he has to drive Sheldon everywhere he wishes to go, whenever he wishes. It even dictates when Leonard is allowed to use the bathroom.
The Staircase Implementation - The Big Theory (Season 3, Episode 22) - Apple TV.
Roommate agreement with apartment flag logo. The Roommate Agreement was written by Sheldon and was signed by Leonard when they first became roommates. These events were shown during a flashback in "The Staircase Implementation".
Paige from Young Sheldon is never mentioned in The Big Theory, but why did Sheldon Cooper keep his childhood crush secret? BBT was created first. Kinda hard to include a character who wasn't even an idea... Because the Big Theory aired first, duh.