Regular bikes have the benefit that they improve your health, it's not exhaustive once you get a better stamina. E-bikes are a bad product I think in todays society
I’ll use the ebike when I’m tired so I end up using it a lot more.
You can turn them off the power then your riding around with 30 extra pounds if you need more workout...
https://ijbnpa.biomedcentral.com/articles/10.1186/s12966-017...
On a conventional bike, it takes some training (and thus, skill) before you can ride 25+ mph for any length of time, but you can take an eBike out on your first ride and ride that fast.