I grew up on 250-400cc two smoke enduros (remember when we called them that?), the sun was setting on the heyday of the 400-650cc Brit desert sleds. Weight was the enemy. Stepped away from motorbikes for 20 years, and the Adventure-Touring thing started. Not sure I can ever get into it, even though I'm considering a 3-400 cc dual sport. With a full ADV bike I'm sure I'd get to a place where my "Help, I've fallen and I can't get up" button would not work, and I'd for sure fall, and not be able to get up.
My latest scooter? Absolutely street based, an older Monster 900.