advice on crash responsibility

[Grandma]

If that is accurate sounds like a 50/50. However, as you were on the main road, surely the onus is on the driver pulling out from the minor road to check that it is safe to do so. The fact that other vehicles had stopped to allow him to pull out is imho [color=rgb(0, 0, 255)][/size]irrelevant[/color][/size], that is a courtesy gesture, it is still his responsibility that it is safe to do so,, and it clearly wasn't!