Simone Biles pulling out of the Olympics for her own well-being is totally understandable, that is -- if you take into account the pressure around her, and what she's survived ... so says Dominique Dawes.
The legendary gymnast -- who hit the mat as part of Team USA's gold medal-winning 'Magnificent Seven' in '96 -- came on "TMZ Live" Wednesday to talk about Simone's stunning decision to forgo competing in the all-around competition later this week ... and give up defending her gold.
It may have come as a shocker to many, but Dominique tells us she gets it .