Default behavior of git pull

Wouldn't it make sense if "git pull" would by default also pull the branch with the same name from the remote, in case no upstream is configured?

If I can push to a remote with a simple "git push", then I'd also expect to be able to pull from that same remote with a simple "git pull".

Does anything speak against this?

Example:

   git clone $url
   git checkout -b fix-1
   # do commits
   git push           # push to origin/fix-1 (works)
   git push origin    # push to origin/fix-1 (works)
   # other people push to origin/fix-1
   git pull           # pull from origin/fix-1 (fails)
   git pull origin    # pull from origin/fix-1 (fails)