"It Starts at Home"

There's some videos on YouTube about Home Teaching (New Years resolution for some Mormons perhaps) and I realized that I don't ever remember having home teachers.

• Is it only something that is done for newly converted families? (my lds parent was raised in the church, but what about my semi-but-not-really, left-before-they-got-baptised one?)
  
• What about families in need, like ailing elderly relatives? (my grandmother would get visitors, but only sometimes)

The only time members came over was in the case of missionaries, when they were invited missionaries for dinner. Even though we lived far from the church and their best scouting locations, we'd have them over pretty often. At one point the distance factor led my father to stop having them over (Maybe the bishop had a talk with him)

No need to cultivate friendships - or fulfill the lowest hierarchical need in the case of missionaries - with members when you can be spending your time churning out more members (= more dues)