No Neutral wire requirement
So, when will Tp-link's line of products include a line of devices that won't require NEUTRAL wiring?
GE is going that way:
https://www-theverge-com.cdn.ampproject.org/v/s/www.theverge.com/platform/amp/2020/1/2/21042580/ge-c-lighting-smart-switches-dimmers-no-neutral-wire-price-specs-features-ces?amp_js_v=a2&_gsa=1&usqp=mq331AQCKAE%3D#referrer=https%3A%2F%2Fwww.google.com&_tf=From%20%251%24s&share=https%3A%2F%2Fwww.theverge.com%2F2020%2F1%2F2%2F21042580%2Fge-c-lighting-smart-switches-dimmers-no-neutral-wire-price-specs-features-ces
All over the world, even in New homes, neutral wire is NOT part of the electrical regulations (including 1st world countries, not only 3rd world).
Kasa devices should look at the bigger picture... Just like GE did.