CAN ANYONE DO A TRIATHLON?
Of course. I recommend doing some training before your first attempt (in particular several sessions in the pool), but people of all ages and abilities compete all the time in the sport. I have seen people in their eighties outperform others in their twenties, and there are always fierce competitors in every race who are missing entire parts of their anatomy (such as arms and legs). Blind and hearing-impaired athletes regularly compete as well.