“This means that an average man of 5ft 10in who weighs more than 17st 6lbs or a 6ft man of around 19st would not be allowed on fishing boats.”
So a 5’10” man weighing more than 244 pounds or a 6’ tall man more than 266 pounds would be unable to fish commercially. This would keep tons of very health athletic people from fishing.
5’10” at 240 lbs is likely not obese, except on the BMI chart. If you saw him on the street you likely wouln’t think him “fat”. Sure he could likely lose a few pounds but it’s not outrageously overweight. It’s more like a guy with a bit of a beer belly body type. The BMI calculator is unrealistic and doesn’t factor muscle mass or bone density. The BMI seems like it was designed for Kenyan marathon runners.
But even if he a was 5’5” and 300 pounds it doesn’t justify government denying him a livelihood. If they say he is unfit I sure hope they pay him workers compensation. Or he sues for disability. Assuming they have those in the UK.