I dont regret it, but i also do as it has caused me a bit of a dilemma.
I've always owned older cars. Infact i still have a 20 year old A4 and a 25 year old Range Rover alongside the LEAF.
I really like the EV drive, but i find myself frustrated that getting one that actually ticks the boxes is basically impossible. Being new, and expensive, means i cant apply my usual approach of picking up a top end 8-10 year old model for peanuts. Prior to my first EV for instance, i had a 9yo BMW 330d. It had all the spec, was a really great car, cost 6 grand to buy, and sold it for 5 two years later. It needed some maintenance but overall it was pretty reliable, and the things it did need done werent all that expensive. The LEAF, well its not even close as a car, the BMW was simply better in every dimension. Despite being diesel the 6pot engine was great. But i decided i didnt want to drive diesel any more, and really enjoyed the EV driving experience after the first lease car (a B250e)
Finding something a bit more like the BMW, with a bit more spec, and a bit more space and a bit more power, results in a tiny list of really expensive nearly-new cars.
So the regret is i'm now "stuck" in an ugly slow car that can barely drive the length of itself, and cant actually afford to buy the car i want (which probably doesnt actually really exist either), while simultaneously feeling like i cant "go backwards" back to ICE land.