Does anyone know of a group tour experience like Road Scholar (small group, in depth) for young people? Something where they stay in a city for several days, have chaperon/instructor to guide them, etc. This is for a young person who has never traveled alone, kind of an entry trip to Europe. Thanks.

Not unless they are with their grandparents, LOL.

Young adult?
Rick Steves tours might fit the bill. Although most will be 50s-60s, there are always some who are younger, and the guides teach travel skills along with history/culture.

I've heard good things about Backroads (no personal experience). They aren't limited to young adults but being active tours they do attract more 20 somethings than octogenarians.

I suggest Intrepid Travel. Small groups, mix of ages, central hotels, free time, local transport, some flexibility in itinerary - but leader handles all the logistics and provides information about each place.

Is this young person a student? Not that you have to be but Rick Steves son Andy has his own tour company with small group trips. https://www.wsaeurope.com/trips/behi...-iron-curtain/

Thank you for the ideas. This is a naive young graduate student who hasn't traveled out of the US, and rarely outside their home state. Will look into your suggestions.