an armrest war should be avoided at all cost, as it could make an already cramped air travel experience even worst. Now there's a airline/movie theater/stadum chair - armrest divider

Soarigami is an origami inspired folding device that not only divides the skinny airplane armrest, but it also extends the arm resting surface area so both you and next seat fellow passenger will have each own armrest. The device literally creates two armrests out of a single pathetically narrow armrest and in the process, form a divider so both party’s elbow will never have direct, physical contact.

https://mikeshouts.com/soarigami-portable-airplane-armrest-divider/
19 Dollars on Amazon https://www.amazon.com/gp/product/B0725KDSW2/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=mikeshouts-20&creative=9325&linkCode=as2&creativeASIN=B0725KDSW2&linkId=7e78d2cce18e28291ddb5596f04a8559