Take-off to 50' data is to allow for obstacles. There are many strips where few aircraft are at 50' when they pass the end of the runway. Aircraft manuals usually also give ground run required.
it's the pilots privelege to decide if the runway is suitable.
(I'm much more cautious since I aborted and hit a fence 27 years ago - uphill, long grass, near max AUW, but into wind, with telephone wires in the distance.)