Can one be unserious yet responsible?

❓QUESTION:
Are seriousness and responsibility very different things? And can one be responsible and unserious?
❗️ANSWER from lee:
Well, a person can, very responsibly and seriously, while hurrying, irresponsibly run a red light. That is, these are entirely different concepts and different levels of different aspects.
Most often people are responsible for one thing while ignoring another. For example, they are responsible for other people's goals and tasks while being completely irresponsible about their own goals and tasks — "It doesn't matter what I want and how I live; what matters is what society tells me about it." Society said that suffering is useful for the sake of a bright future — so suffer. The entire ideology of the USSR was built on this — living for years in squalor for the sake of "later." And doing it very seriously. Very seriously scolding "the West" for their "consumerism" while sitting behind one's own fence, peering through a gap in the hedge at the joyful and wealthy bourgeoisie.
But life happens today, right now. And it's better to be cheerful today than "later, when everything gets sorted out." For tomorrow will reflect your present state.
Thus, it's better to be responsible for your own cheerfulness, treating the joy of this day extremely seriously.