I'm glad this has been brought up because I had a similar experience in the lower holte at the QPR game.
Young lad behind me aged about 7 or 8 with his family, looked like parents and grand parents. Anyway his squeaky voiced shouting abuse was quite lame, some of it mildly amusing at first but soon got tedious. During the second half he starts telling everyone sat round him that his head teacher is gay and goes to gay bars. His family seem quite interested in this gossip and ask for more details. So the young boy continues to state the fact that the teacher is gay, repeats this statement about 15-20 times at a high volume some everyone sat nearby can hear. Not once did his parents/grandparents tell him to shut up, in fact they just seemed proud of the lad.
Left the ground thinking why bother going anymore, do most parents let that kind of hate come out of their kid's mouths these days?