How do you feel about the batteries in electric vehicles?

What about wearable devices like a smartwatch, headphones, smart glasses?

Should all these be consumer-replaceable without tools, regardless of the effect on the other things people value in these devices (waterproofing, size and weight, battery life, etc.)?

FYI I do not work for anything close to the consumer tech industry.

For EVs you need at least a hoist/lifter/crane/other power tool to replace a battery. But sure, there's no actual engineering reason they can't be replaced by the user. Same for the smartwatch - you can replace a battery in most ordinary wristwatches that use them, why not the smart ones? IEMs are usually too small and that's where the engineering limitations might matter. Headphones, no problem.

> without tools

With commercially available tools, yes. The argument is that, given the skill, you could pull it off.

Then again, maybe cars are a different category. I really don't have enough skilll to add to this discussion