
I have to agree with the majority on this one. Perhaps go to the parade this year but without your horse.
I can only imagine the music, commotion and all around noise your 2 year old would be in the middle of as suggested before perhas you could rethink your decision.
IMO having been involved with a large riding club for years there is always the unexpected that can arise even with the most bomb proof horse and we are just trail riding.

I wouldn't want you or your horse or someone else watching the parade to get hurt should something rattle your horse.