My concern was if i don't update it, would there be a time like when someone created a thread that they could not do a firmware update because they didn't touch their ledger in at least few years and was in that very old version like version one?
You're too paranoid, even for something so sensitive, such as cryptocurrency. Process of firmware update is something that takes a few minutes on a supported OS, and in most cases does not cause the Nano S/X to reset. Your problem is that you complicate things that are so simple, you hold the seed in another country, and persistently ask the same questions that you have already answered. Just update your Ledger or don't do it, it is a simply choice - who knows what will be with Ledger in next 5 or 10 years.
My Ledger also broke down after the latest firmware update, thankfully had almost nothing stored on it. Sent Ledger a message, but I expect they do nothing.
Broke down how, what exactly happened? The device could be reset to factory settings or in worst case you burn/brick it. In first case you can recover your coins by entering seed, and in second case Ledger has already replaced (for free) broken devices several times.