Well instead using e-bike why not purchase an old car (from year 2000 - 2018), like old honda civic or old ford fiesta or old Toyota Corolla
I like your idea but using bike for everything but in the end is bad case especially if you need to go somewhere that very far (well using public transportation in the end kinda costly for longer run especially if you already married & have children)
I’m not saying it’s wrong to have bike for short trip it’s okay yo used bike, but in the end you need reliable car that can make you go everywhere