In theory, every line of movie dialogue should serve a purpose, whether that's advancing the plot, revealing something about a character's personality, or making the audience laugh at Steven Seagal. But sometimes a single, seemingly insignificant line can accomplish much more than the writers ever intended, to the point where they probably should have put a bit more thought into it. Like how ...
The Karate Kid Glazes Over Daniel's Mother Losing Her Job
If you can recall the non-karate parts of The Karate Kid, Daniel's mom moves them from New Jersey all the way to Los Angeles so that she can work in "computers." Then, within weeks of moving, she ends up leaving her job to work as a hostess at a Chinese restaurant and gushes to Daniel over how much better it will be, saying that the benefits will be great.
Uh, what's that? The Chinese restaurant offers better benefits than her "computer" job? The one she moved her child 2,700 miles across the country to take? Did she get fired and is covering it up? Was there ever really a computer job?
A deleted scene offers more info. In it, Daniel's mom explains that the computer company went bankrupt right after they arrived, forcing her to scramble and take a local gig. So her gushing explanation about the "benefits" at the restaurant means she's either in total denial about how shitty her situation is or she's frantically trying to conceal her worries by putting on a happy face for Daniel. Or she found the one restaurant that actually gives benefits to its employees. But there is only so far our suspension of disbelief can stretch.