My wife moved from her flat bar converted cx bike to the other end with her mom bike, a Momemtum Vida E+ low step
linked here and she loves it, no going back to 'analog' for her. Zips around the area with our dog, rides with our kids around the block and even has a basket on the front to stop and get the mail or whatever. It's heavy but if you're riding from home, no big deal. Also not the end of the world to load up and take to a park/trail when I'm already loading up kid bikes, snacks, helmets, etc. End of the day, if it gets her out more and she's happy, that's a big win. Fitness isn't a big issue since it's pedal assist. Folks think ebikes are for old people or lazy people but there is a huge market of fun for parents getting out with their families, commuting to work, towing kids to ice cream or soccer practice with a little bit of assist to help with the hills, towing a burley, any bit helps to make it more fun and enjoyable for all. And if she's not riding it distance to work, you hardly need to charge it. Go for it!