I've sometimes had some problems with setting the boundaries at the correct level. I've learnt from it and I'm trying to "read" persons more carefully than before.
If we all were just the same in every way... what a dull world to live in!
I also think that us who spend a lot of time by ourselves within the four walls of our home... might lose some of the "finger touch" in how to address others. We need each other and to learn how to be good both to ourselves and others is important.
Maybe this sounds weird... but I think that we are kind of like a lichen... a symbiosis between algae and fungus. They need one another to live. They work together. We all come here to feel better, feel loved and less alone. We need each other...

Let us all do our best, in keeping healthy boundaries...