You have your own privacy whenever you need it.
You can talk to anyone who is interested.
You do not want to be frustrated if you cannot get the right pitch so invest in a good capo.
You can watch sports, movies and TV series without any hassle.
You can talk to anyone without any fear. No one will question that.
You do not need to hide the last seen to avoid trivial fights.
You can sleep when you feel like it and wake up when you feel like it. Do not talk or chat with anyone except at night.
You can focus on your own hobbies and interests.

You can love yourself when you live alone. Unnecessary grief and quarrels can be avoided.