Hello SB,
My cousin (such relatives we called brothers) bought BMW 500 with side-car, old but in excellent condition (that was decades ago, and he is dead now), and took it home - the first experience with side-car after many kilometers with JAWA solo. He lived in Vojvodina, quite flat agricultural county of Serbia, where the roads are straight for a lot, and then suddenly have corners at 90°. That was a relic of old roads between fields. So, on one of the first corners, he just go straight, no mater how he leaned his body, but didn't turn handlebars! So, he made nice 15 meters long street in corn-field. Good, that there wasn't any trench or canal on the edge of the road! Habits, even good, are difficult to be changed. At home, he removed side-car and sold it to one older rider (probably younger than we are now)...
Nice to have dog for passenger, saw a lot of them on bicycles and motorcycles, here in Bern! I had German hunting terrier, but he was wild and for sure would jump-out and run-away!
Pity that I gave big, old men bicycle to the friend: could build something as Ludwig made! Or many classic-looking motor-bicycles here... But, I would need place for two – so, velocar is more practical.