I understand your point of view but I don't know, in advance, where I will go.
That's also my preferred travel style, but, you have to be aware that on some routes you need to book train tickets in advance, which is quite an incovenience if you travel with a loose itinerary and no precise time schedule.
On many routes there are also busses as a second option.
Others on here, with recent experience, might help with some practical suggestions on this.
