when HCB started photography, he did not join some photo forum, ask for gear help, ask what focal length lens to use, what camera accessories to buy. he also did not spend years perfecting his technique.
hcb did not watch moriyama or burce gilden on youtube, and read eric kim articles on ten ways to be a great street photographer. hcb was great to start with, he pointed and shot but the talent itself came through and the rest is history... he never did anything better than his initial years.
photography or art for that matter is brutal like that. its all about talent and the effort simply follows that. the spark has to be there and then the spark itself drives the person.