Train to smaller towns in Germany

What are you "wondering" about? It is all the same whether it is a big city or a small village. Train stops, get off, train leaves. The train may not be as frequent so checking the schedule is critical. It is easy to do.

Yes, many times. It's not different from travelling between Berlin and Hamburg.

Except connections will probably be required. May have to go down and up a stairway to switch platforms. Traveling light will make life a lot easier.

Germany has one of the best train systems in Europe, and you can get just about anywhere in the country using it. I spent a month in Germany last year and relied almost solely on public transportation. If you're interested in learning more, I highly recommend The Man in Seat 61, who has spent years explaining trains in Europe to visitors. https://www.seat61.com/Germany.htm

The smaller towns may not have ticket offices. You buy your ticket from a machine. You may not have luggage storage. The stops at the station may be shorter than in the big cities.

We’ve traveled along the Rhine by train. Lots of charming little towns to see. Easy to get to from Frankfurt.

Upper Middle Rhine Valley, just NW of Frankfurt: There are stations in the charming towns between Koblenz and Bingen on both riverbanks.

The Mosel River Valley Railway: Many nice towns between Koblenz and Trier.

The Mosel Wine Railway: an offshoot line from the Mosel River Valley Railway to Traben-Trarbach.

Black Forest:

The "Schwarzwaldbahn" Railway between Offenburg and Donaueschingen, not all stops are shown.

The Kinzig Valley Railway between Hausach and Freudenstadt.

Thank you Paradise, you gave me the information I was looking for. Yes I have taken trains in Germany cities and other European countries. And Canada and South America. I was wondering about an itinerary that some one had taken and enjoyed.

"I was wondering about an itinerary that some one had taken and enjoyed."

I've traveled those railways I mentioned over a few decades on several different itineraries, some that included Switzerland, the Netherlands, Portugal and other places even farther afield. So it wouldn't seem right to just toss you one of my old itineraries. The better course of action here might be to share your travel interests (festivals? wineries? car museums? zoos? etc.), the time of year for your trip, and the approximate number of days you have in mind. All that is helpful in making more specific itinerary suggestions.

... was wondering about traveling to smaller cities and towns by
train. Has anyone done this?

Absolutely. I've spent 85% of my 250+ nights in Germany in towns with less than 20,000 population and, I've visited a lot more small towns without an overnight stay.

I've gotten to almost all of them by rail, the rest by buses, mostly buses of the RVO (Upper Bavarian Transit).

Germany is about the size of Montana and has over 20,000 miles of track. Including S-Bahn stations it has about 5400 stations. German trains go to a lot more places than most people realize.

I would make sure you have some kind of translator App. The dialect in some of these small towns is unique. Hochdeutsche will work most times. Berlin, Munich, Dresden, and Hamburg citizens will have a hard time to understand some of these small-town local dialects. The local slang is sometimes part of the tourism and is laid on really thick. If you need help, most will recognize this and switch to understandable German. Many understand some English. You will be OK, especially as a Senior. Engage with the locals and have some fun. Servus!