A BMI that low is not a good thing. It is evidence against your diet being optimal. Mortality rates are actually higher when BMI is below 20 (https://www.bmj.com/content/353/bmj.i2156 https://www.bmj.com/content/bmj/353/bmj.i2156/F3.large.jpg -- although causality is not established). And from a common sense or aesthetic perspective, such a low BMI almost certainly means you lack ideal muscle mass.
When you see the typical Japanese centenarian, who have a BMI around 19 (mean: 19.3±0.4, median: 18.9 (11.9, 30.2), https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5107392/), it contradicts this statement. I'm not Asian, and I'm taller (BMI is usually lower for taller ppl)
in conclusion, people have very different morphologies, so BMI isn't so significant
60kg at 1.82m strikes me as really fricking thin. I'm your height, and have considered myself a lean, athletic guy, but at 13% bodyfat I weigh 80kg.
My daily activity doesn't require some more particular strength (although I wouldn't consider myself weak either), it's more about endurance. I've enough core strength to not have any back problem too (I avoid sitting on a chair though, but rather lie down/stretch out in front of my laptop)