He was the President, and everyone wanted to see him. A few wanted to kill him, and the crowds made it easier to do. Pretty sad such evil has always existed.
It was a political trip to mend fences with the Texas Democrats. Kennedy needed Texas to win in 1964.
People used to respect the president and it was a big deal when a president came to your city. People would go out in the streets just to watch them drive by.
it was a parade to celebrate his 21rst wedding anniversary. or so I believe.
I know it wasn't an inauguration parade, so what was it for?