I have experience using a scooter(49cc), motorcycles(Ninja 500, 800 and 1000cc bikes), and bicycles.
It depends. If you think a bicycle isn't safe(or particularly fun at 10 miles daily), scooter is an iffy proposition. Doubly so because my 49cc one could barely hit 40mph going down a hill. It topped out I think ~34mph on a level area, so if you're on roads with 45mph speed limits... no, I would not particularly enjoy that.
Scooters at that range(low end 50cc) are also useless if you want to use them for any distance that involves highways/faster speeds, and they just feel slow and annoying. I'd highly recommend checking out 250cc-500cc low end motorcycles, they still get 50-60mpg, can go at highway speeds, don't feel recklessly dangerous in an underpowered fashion, and come in at awesome prices used which you can almost always sell back for around the same price you bought them for.
Also, safety gear is a must. And this is an important point, as everytime you get on the vehicle you should at an absolute minimum have a helmet(I wear jacket + gloves, slacking on riding pants + proper ankle protection), which means that you have to deal with handling a helmet everywhere you're going, whether it be locking it onto the vehicle at your destination, carrying it with you, etc. Any trip involving the vehicle is a little more complicated then just hopping in your car. Also, being exposed to the elements, right now at night it quickly hits 50F here in Phoenix, and that's cold as **** on a bike. I'm wearing non-permeable leather jacket, and about to switch back to my leather gloves and soon a balaclava underneath my helmet because it's so uncomfortable. And that's just Phoenix.