Well, I think she should be bloody applauded for standing up to them. 'And here's to you, Mrs Robinson!' 
She was talking on our Welsh local news last night, and I thought she came across very well. certainly not an 'attention-seeking' or a vigilante
. Just a normal mum who is sick and tired of having to put up with foul language and aggressive behaviour.
If there was any example-setting going on, I think to show that if you are being bullied you can stand up for yourself is pretty good. If my mum had done somthing like that I would have thought she was wonderful-it wouldn't make me go and play on the tracks, for goodness sake.
30 aggressive football fans is very intimidating. She had put up with abuse for a while before she resorted to getting on the track. And as for calling the police from her mobile, how many of us would do that right in front of them? Plus the signal is very patchy in the South Wales valleys,she might well not have had one.