The problem is life isn't just going on, it's in danger of going full circle with Russia's antics.
The dual dangers are that we'll both forget the lessons of the past, and will in turn fail to prepare for the future. Chamberlain did this in the lead up to WWII, having already forgotten the relatively recent example of WWI.
And as a nation we're in danger of doing so yet again. Look at rhe criticism the government got from their (rather half arsed) talk of national service, most of the derision coming from folk who'd never worn a uniform themselves, and we're sleepwalking towards it once more. While our politicians and pundits are bickering and scoring puerile campaign points off each other Germany are having serious talks about emergency preparedness, food supplies resilience, public bomb shelters, reintroducing national service and having conscription laws on stand-by in case conflict becomes imminent. They're getting stuff done, because they've had 80 years of constant threat from the East and they very much haven't forgotten. For them it's not simply history.
Vigilance is the price of lasting peace, and the longer we remember the lessons of the past the more inclined we may be to not repeat the errors. We may be paying lip service to remembrance, but far too many have already forgotten the real lesson.