@indianajo's comment about electrics possibly tempting one to veg out... I think that temptation would apply more if the ebike had a throttle mode (vs. a pure pedal-assist-only.)
I got a pedal-assist-only partly for that very reason (to eliminate that "no-effort" temptation which I feared I'd find irresistible.) I tend to use just the 2 lowest Assist levels on most of my rides (perhaps hitting level 3 or 4 rarely, in conjunction with more downshifting.) I'm starting out overweight -- but have already dropped ~20 pounds in the past 7 weeks between the frequent biking (including 20 office commutes so far) and sensible diet modification... Point being, even my e-assisted rides are giving me a workout (no doubt helped in large part by trying to stay in the lower assist levels whenever possible) -- and the workout is a level of not miserable and therefore repeatable exercise, far beyond anything in my pre-eBike, quite sedentary lifestyle.
The thing with the eBike that has been transformative for me, is that option to use assist smooths or eliminates out the old "miseries" that come with a pedal-bike for a casual rider -- smooths them out immediately on the first ride. Without those miseries at the end of a ride, imagining the next ride is ... surprisingly pleasant. And the next ride... and the next...
I could not believe how quickly my
mindset changed about this new form of exercise I was introducing; that is just what I wanted to have happen when I decided to buy -- but I also secretly feared it would
not happen, given my past history with exercise -- and the bike would become a pricey clothes-hanger at home in 2 months. I wanted it to make me want to ride more... it does! I look forward to the commute home especially (which I make longer than the straight path home) And I'm pissed as hell that I've lost 3 days this week of biking, to total crap/rain weather!!
I still can get really sweaty (though I aim for a lower-effort morning commute to avoid the sweaty mess upon arrival.) And yes my legs felt wobbly after rides for the first several weeks, and my seat was sore... But even that wobbliness and soreness diminishing was just more positive reinforcement! 20 years ago, the sweat, the aches and pains, those "miseries" would have quickly seen me put the pedal-bike into storage and then forget all about it... (pretty much exactly what happened 20 years ago!) Where those "symptoms", on my pedal bike 20 years ago would have quickly stopped me from biking, they no longer defeat the sheer fun of riding the eBike with the assist levels available in my arsenal...!