Yes, obviously the feasibility would depend on the size of the congregation.

I'm actually on the fence about whether this is always a good thing, for a priest to get TOO familiar with the lay faithful.  It's one thing if the priest is a saint, but otherwise an excessive familiarity might lead to loss of respect, an unwillingness to approach the priest for Confession, etc.  Also, there's a potential that if the priest might even APPEAR to favor one family over another of resentment and accusations of favoritism.  I've seen all of these play out in various Traditional chapels.

As far as I know, parish priests have the duty to care spiritually for the people under their authority. If visiting people's house helps them to do it, them it is a good thing. I don't have profound knowledge about this, but I don't think that they have the moral and formal obligation to go to people's houses.

It is also important to remember that Traditionalist priests are not parish priests. They have no authority, no formal obligations towards any of the laity.

In my opinion, it is a good thing if the priests know the people, know their names, their families, etc...but it has to be done carefully. If the priest acts like a star and doesn't talk to anybody outside of the confessional, people might start to resent him. On the other hand, if he is too close to the people, some problems might arise.

I don't want to play tennis and drink beer with the man that hears my confessions. Know what I mean?

Two priests and one bishop have been to my house.  The priests came to bring the Sacraments to sick, housebound, elderly.  The bishop was a Navy buddy of my father’s before he entered the seminary.  He ate lunch with us and Dad drove him to the airport.