I also feel bad for someone just starting out because indeed Poetry is new and experienced Pythonistas won't have heard of it!
I'd probably teach it to start with and tell someone "Don't worry about pip and setup.py and virtualenv"- the problem is that they're going to encounter mention of those tools everywhere because the language is >20 years old and these tools are 10-15 years old...
Cruft is hard to get rid of.