PTSD

I feel like there are many exceptions to this, but generally I don't recall seeing many characters get therapy or help for ptsd. For example owen could have been such less of a jerk if he got therapy for his ptsd. Or like cristina just straight up left life both times she had ptsd and I don't recall her actually getting help. The only person who got lots of therapy was meredith and she didn't even need it that much (no offense, but uk?) Do you agree?