Well now, I'm one of you; in the sense that I am plus 70, with a heart condition (recent stent) and live in a hill bound location; eg have an 18% round the corner.
Having also put on a bit of weight, I have made a gradual transition from a sprint (CAAD 9), to CX (CAADX), to a 36v pedal assist rear hub 27.5. Whilst the 25k weight e-bike is manageable on road and trail, with a tweeked 40kph powered top speed and 100k flat road range; it does have very limited capability for mountain / single track.
With the latter in mind as an additional aim, I am now converting a late 90s, 26 inch full suspension mtb. Given the majority view is that mid mount is better for this specific kind of riding, I have opted for the reasonable cost of a Bafang BBS02B. A work in progress; with the hope that the 750w will handle a mountain, a big hill and cruise easily on the flat.
I ride with many like us, and others have, as road/trail riders, mostly gone for rear hubs of varying degrees of power and size (mostly 27.5 and 29 depending upon their height); their having a second dedicated mtb if needed, for that purpose.
I still ride my road bike sometimes, if I don't have to face big hills, or if I am not with the group; however e-bikes do mean that you are easily persuaded, to take the easy option.