Something that gets really lost in a lot of discourse is that what we would now call 'going low-contact' or 'going no-contact' with your family used to be so completely within the normal range of familial contact that there wasn't even a term for it. Sure, in the pre-IM pre-social media days some people were calling their parents daily, but I'd wager the vast majority of people were not. Long distance calling used to be quite expensive, after all. If your kid went to the big city to seek their fortune you might hear from them every few weeks, or every month, or once a year, and that wasn't particularly odd. This was even more the case before telephones were common, of course - people would send letters, but definitely not more than once a week and probably a lot less. It was just a normal, accepted fact that you'd hear from some family members who lived nearby often, and some who lived farther away very rarely.
The minimum amount of contact with family that is expected of people in the groupchat-facetime-instagram era is so much higher than at any previous point in history. The ceiling is about the same, since then and now multiple generations often live under the same roof, but the floor is higher by orders of magnitude.
How many adult children who are 'no-contact' or 'low-contact' now would also have been the ones who moved to the city and sent a letter every three months then? Is family estrangement an actual current problem, or is it just an illusion caused by smartphones?