That is not possible for many others.
None of those qualify as dysfunction in my book.
- "Older grandparents" is a sign that people are waiting too much to have their own kids.
- "Other family obligations", like what... Work? Perhaps we should rethink our globalized, modern economy that makes dual-income families a necessity. I really hope that by the time my kids get to have their kids, my wife and I are in condition to dedicate ourselves to help them as much as our own parents helped us.
- "Visa issues" is mostly an American thing, which unfortunately I also I am very familiar with (lived in the US before coming to Germany). The US is only going to sort this out after it solves the Milton Friedman dilemma: it can be either a country of Open Borders, or it can be a Welfare State. Until it tries to be both, it is doomed to these catastrophic policies.
- Does either side of the family have enough money to fund cross-country travel more than once a year for a week at a time?
My parents are retired/semi-retired. When they come, it's usually during the summer (here)