When I was at school in 70's, I was a bit of a wimp, single kid brought by single mother, back in the seventies before it was fashionable to be a single mum. Anyway I got bullied a bit by yobbos at school who where just vile, to me, other kids and teachers, it was a bit miserable, but when I left it was forgotten about and that was that.
Fast forward to about 1999 when Friends Reunited was very popular, I logged on to the site out of curiosity to see what was what, and nothing all that much interested me on it, so I forgot about it. About two years later, I got a message from someone via the site that had been at my school, it was a long letter about what this lad had been doing since leaving our school and that he was now a social worker helping prisoners rehabilitate at Wormwood Scrubs prison. The point of his message was to apologise to me for being one of the lads that used to bully me at school, that it bothered him for some time and that he was sorry.
I found it most odd, and whilst I remember being bullied I had absolutely no recollection of him what so ever.
So these kids, who are being a pain on the street, forget about them, ignore them, most of them will grow out of it.