Is anyone unreasonable here? School run bike collision

[loopyluna]

School run is along long path. No traffic, lots of kids, mums, buggies etc.
Some children take scooters, bikes etc.
7 year old on bike, lent to her by friend. Brakes broken (friend's mum knew but forgot to say), child not going quickly but still can't slow down and bumps 4 year old, knocking her over. 4 year old has grazed knee and is v upset. 7 year old also distressed.
As far as I am concerned, moral of the story is, no more bikes on the path! Scooter or walk and if bikes really needed, take a different route...
Uninvolved school mum witness thinks 7 year old should be punished... Really?

Ignore the uninvolved mum, it was nice of your DD to make the littleone a card

You should have checked that the brakes worked before letting your DD ride the bike

I really don't think it's reasonable to expect the majority of people to do a thorough test of a bike lent by a friend. Unless of course OP knew the friend was a total idiot already.

Umm, did the back break not work either? It would be the safest brake to use in general..

Was your DD going too fast? Is that what the witness mum was annoyed about?

She wasn't going fast and although friend's mum said that the front brake wasn't working, it looked to me like no brakes were working. DD has her own bike and knows how to brake. The mum told me today that she'd taken the bike in for repairs a few weeks back but they asked her to leave it for a couple if hours and she hadn't had time!? She said she'd try to get round to it this weekend...