Good advice.
I wish I’d listened to #5. 😀
I can’t fix a chain. Nor am I carrying a link.
Almost ANYONE could get into multi-day cycling. So long as you can sit on a bicycle seat a few hours a day.
Sleep in a tent. Or in a hotel each night.
Some campgrounds in Germany have E-Bike charging stations.
Click PLAY or watch it on YouTube.
IF you were to try bikepacking, I’d recommend renting the bike for your first multi-day trip.
Europe is the easiest place to give it a go.