Git repos have lots of write protected files in the .git directory, sometimes hundreds, and the default rm my_project_managed_by_git will prompt before deleting each write protected file. So, to actually delete my project I have to do rm -rf my_project_managed_by_git.
Using rm -rf scares me. Is there a reasonable way to delete git repos without it?
Use rm -rf. If you are scared of mistakes, type
echo rm -rf nameofdirectory, check it, go back, delete theechoand press enter.