The great thing about trikes, and especially e-trikes is you can remain active years longer. When you get older, if you set in front of the TV, you will quickly rust out and die.
OTOH with how much fun trikes are to ride, they are great fun for anyone, no matter how old you are.
The "real cyclist" turn their noses up at bents and trikes--------now. But some day, they too will get old and if they want to get out and cycle, a trike may be their only choice. And with an electric trike, they can almost ride up to the day of their funereal.
The great thing about a trike is the stability! Newbies can just get on it and start riding, whether you will before or not, it's stable enough not to roll over (on a smooth road!) Another great thing is that you can carry a lot of stuff, although two-wheelers also have baskets, tricycles can carry several times their capacity!