What was my Dad busy doing? Focusing on his career in order to provide for his family. Doing hobbies that increased his skill set. Fixing the house to ensure we all had a nice safe place to live. Tending to the garden to keep the neighbours happy. Building ties with the community to increase our family's standing in the community and being able to call in favours in emergencies etc.
The 4 days off he had from his primary job, he worked multiple other jobs, creating multiple streams of family income.
It's so easy to view many of these things as him not tending to his family directly. That's incredibly short-sighted.
My mother appreciated very little of those things, and constantly nagged that he never did enough. She admitted many years later this was a big contributor to their divorce.
I think some modern opinions of parenting come from a very individualistic, transactional and reciprocal mindset. Eg "I spend 1 hour doing the dishes, you have to do something, today, and of equivalent value, to show you love us". What kind of foundation for a relationship is that? What happened to the power of a family?