Dude, in ADventure, they were all over each other like a lampshade whether it was from fisting each other out of frustration or sharing feelings on how it's like to be an older brother, and holding each other in their arms to say what a best friend he is.
Speaking of which, I just finished Digimon Adventure in the span of about 3 days. Not fully dedicated at first but yeah.
The Tai PTSD thing makes even less sense to me now given the hesitations he WENT through before. I mean though... I guess the big difference is that despite the massive amount of damage they did in the city in Adventure, Tai didn't... quite care as much, but he still cared about the people. That and while at first they were considered monsters, they changed their minds rather quickly, and cheered for our heroes instead of the cynical "plz die and give me back disney land" stuff from people now.
Episode 21 and 35 were definitely the best episodes. Parents were cool. I'm always a sucker for shows where parents actually get a good time period to shine. It's what I liked about most Precure series before Smile Precure happened :/.