Traveling in first class on a train in Europe is not as expensive as first class on an airplane
I’ve found the difference in fares between the 2 classes is only about 23% on most trains
If you purchase a first class ticket, you can ride in second class carriages if you prefer
If you purchase a second class ticket, you can’t sit in first class unless you buy an upgrade
You can often purchase an upgrade on board from the conductor
Usually, there’s not much of a comfort difference between first and second class
Most second class carriages have seats of 2 on each side of the carriage
Most first class carriages have 2 seats on one side and 1 seat on the other
My biggest reason for preferring first class is that usually, first class is less crowded

