Then I remembered that ebikes are getting extremely popular these days... But for e-bikes, why not use internal gears? You do not really need the fine-grained

Then I remembered that ebikes are getting extremely popular these days... But for e-bikes, why not use internal gears? You do not really need the fine-grained shifting on e-bikes. Besides that, internal gears require less maintenance and allows for models that use a chain guard or belt drive (== less maintenance).