Not going to judge anymore for how they live their life but I can tell you that my Dad became a widower in his mid 20s and made a personal decision in recent years to really focus on nostalgia and I can definitely tell you that decision has had real tangible negative consequences for him. I don't judge him for doing it, but I can testify that overloading on nostalgia is not without cost.

Tell that to me whose parents held on to a house way longer than they could comfortably afford to because "memories" and basically have to sell it now after losing thousands of extra dollars in maintenance and property taxes that they don't have when they would've been far better off financially selling it 5+ years ago