Why does virtual environment not contain local pip when it was created?

[JTP-123]

I used python version 3.9.2 on Windows and wanted to use venv in new program. But after python -m venv venv was input in terminal, virtual environment has no its own pip and instead inherits pip from global environment. That makes each package installed using pip in global. I have to force --target argument when using pip each time.
I found that In local file path venv\scripts, there is no pip.exe.
I have not met such condition before and my last tiny demo in same python version using virtual environment indeed contains local pip.
I don't know how to fix it and it blocks me a day. Any help would be apperaciated, thank you so much!

[gaborbernat]

This is the virtualenv project, not venv.