Maybe but the youngest are late 20s so if so it'd be more like the youngest of the youngest Millennials (or it falls into more the regional).
That said so help me if someone knocks on my door

and my phone hasn't been on anything but silent or vibrate (unless I'm specifically expecting something and known I need to be able to hear it without being by my phone) in many years; all that time in the past searching for just the right ring tone only for me to never want my phone to make a sound these days. But striking up conversations with strangers? Easy peasy.