> Non engineer here
Your lack of understanding does not come from not being an engineer. It comes from not being in aviation.
> it can’t be that large or even that expensive
As evidenced by that comment. :-)
Even the smallest of changes to an aircraft triggers a huge chain of events in motion, with each event starting its own chain and so on.
I don't want to speculate on the costs, financial and time, of a change such as what you are proposing, but they would be prohibitive.
Biting the hand that feeds IT
