Richard, it may just be that the camera’s distance from the squaddies has foreshortened the detail, but it looks to me as if the bayonets are in danger of shaving (or slicing) the face of the man behind.
I am grateful that when I was a school cadet and drilled with old .303 rifles (the works had been removed) held at the slope, we did not use bayonets, as this was a worry even then.
When I was in the military, we carried our rifles upright, thanks to the pistol grip that is characteristic of the FN 7.62mm rifle and its South African counterpart, the R1. Our bayonets were quite sharp (especially at the point), but did not look as lethal, either.
With regard to the second picture, I am surprised to see so many men in slip-slops (as we call that type of sandal). When I was in an operational area, we were under strict orders to keep our boots on almost all the time (we could relax with our shirts off, but trousers and boots were de rigeur).
All the same, I wish we had been able to wear kilts in that hot country. We had left our tartan kilts at home.
Regards,
Mike