CapitainKirk
A go-around from 50ft is perfecty safe. I can understand why it is concerning to the passengers, but to the pilots it isn't a problem as they've done it many times in the simulator (often with an engine failed).
In 1976 I was involved in trials to determine the most efficient height to commence a go-around (minimum height loss). It was found to be 20ft, and this was adopted as the decision height on CAT3B landings, where the state did not approve No DH landings.
During Base Training details I have carried out several go-arounds from the flare (below 50ft) without any drama. However, I don't blame the passengers for being concerned, as some of them might not have been PPRuNers and therefore not as informed.
Hope this helps.
Dave