Ignition lock shit? How acute is it? Is a failure threatening?

(I ask so stupidly because I was already stranded with 2 cars (not Volvo, but similar old boxes) because of sudden and unexpected mechanical ignition switch total failure without notice, and from now on I went to nothing more, except short-circuit.) These following two V70 ignition locks work (still?) without any problems, nevertheless they are somehow “self-like”: Case 1: With a V70 (MJ 97) the rests are no longer noticeable at levels I and II, one can notice t when the steps are reached, but the key can also be rotated in any position “between the steps”. For example, when driving, you can turn the key steplessly mmwise back until the engine and headlight are still on, but the speedometer and km counter are already off, and the key remains in each position by itself (but is quite lightly completed) Case 2: The other V70 (mj 2000) does not have the effect, since the key jumps clearly from the steps as usual. But: This lock in the 2000s has a completely different “phenomenon”: Level I remains on when switching off until the key is turned to “zero” until the stop is completely turned to “zero” (deletion position). Shortly before zero, level I is still switched on, as if the key were in “I” rest. (As expected, everything should be off as soon as you turn back even a little bit away from the “I” rest …or?) If ma n does not pull off the key, it happens so easily that the level I remains unconsciously switched on, and the battery slowly drains. If the radio is running or the blower is manually turned on, then of course you immediately notice that the radio or blower continues to run after turning off the ignition. But if the radio has already been switched off manually and the blower slide is on “AUT”, then the only hidden “note” is the small LEDs on the Klim abedienpart, which are really easy to overlook, especially on a bright day. Are you aware of these two phenomena and even point to an early ignition switch failure? Or is there no reason to worry?Thanks for reviews!