I'm not very tall but I can get my own bag out of the overhead on flights but I cannot on the IC/ICE trains as they are higher up. With luggage space being an issue on those trains during peak season I've had tall men put my big (to be checked) bag up there unasked and occasionally without even asking me if I'm okay with it and then go off the train earlier than me. I've had to ask men to help me get my bag back down or risk braining everyone within three rows with it if I climb on a seat and try on my own.
I'm blunt so i usually ask for help or if they won't help could they please duck until I dragged it out.

I know my three to six weeks holiday checked luggage is too unwieldy for me to move it from the train overhead so if no one interferes it stays on the ground