I think it's because homeless shelters can only take so many people. ANd it doesn't provide you with ALL the things you need. And, it's for only a period of time you can stay there. So many homeless people choose to stay on the street then go to homeless shelters.
He set a giant boulder at the mouth of the cave.
Isolation: Whatever else the Lady of Shalott has going on, she's definitely alone. We don't know who shut her away in the castle or why, but it doesn't seem fair. We can tell that she's fed up with it; in fact she even says as much. Her desire to be part of the world, to interact, to love and be loved, is what pushes the whole plot of this poem. The fact that she never really breaks out of her loneliness is what gives "The Lady of Shalott" a tragic edge.
Some people just react in a disrespectful way. When people are disrespectful, you just have to pause, take a breath, and be nice to them. As people say “kill em with kindness”. You know you’re doing the right thing by being nice. Ignore them disrespectful people cause they’re not worth your time:-)