>>2925101
Because alternatives are often way more hassle, more expensive, less versatile
>ultrasound
Bulky and doesn't measure precise points (unless you use a tag, that nobody does) and doesn't measure short distances
>laser
More expensive, doesn't measure short distances, doesn't work in strong sun, hard to aim on small targets over long distances

>bonus
None of them measure over a curve or around a corner.

Lasers are used commonly for the right applications, but you'll rarely see someone that only has a laser and doesn't carry a tape measure in addition.

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Why are these things still used everywhere? Why isn't there just some small device where you place two markers and it measures the distance for…