Sure, a local-only password manager doesn't need a subscription, and solutions such as KeePassXC demonstrate this quite well (as a user of it myself!)
However, in the case of 1Password it's not just about being a password manager; it's also about syncing passwords between devices, staying on top of (sometimes rapidly!) changing standards between devices and browser extensions, and being aware of the evolving landscape of best security practices.
However, in the case of 1Password it's not just about being a password manager; it's also about syncing passwords between devices, staying on top of (sometimes rapidly!) changing standards between devices and browser extensions, and being aware of the evolving landscape of best security practices.