I think it's because you "have to" run a command to activate the virtual environment AKA use files that are already in the directory. With NodeJS (or any other

I think it's because you "have to" run a command to activate the virtual environment AKA use files that are already in the directory. With NodeJS (or any other platform/language), it's implied that the files in your current directory are the files you want to use for building/execution