To ask friend to meet me at the end of her mile long drive?

[ChunkyStory]

I regularly (about weekly) bring back one of my friends daughters from primary school (this is simply a favour, I don't expect/get anything in return and it is only very occasionally reciprocated all of which is absolutely fine). I live in a nearby town but she is rural and lives down a track which is a mixture of big stone gravel bits,mud and holes. It's about a mile long down a hill.
AIBU to ask her to meet me at the end of her drive? I don't have a 4x4 and have to drive really slowly. I'm concerned about my tyres/suspension etc.
Our arrangement has been going for a few years now and I haven't said anything so far.

If you have been doing it for a few years, the child is old enough to walk the drive on her own imo. I would be open and tell your friend that your car suffers on the bumpy track and from now on you will text her when you are dropping her dd at the end of the drive if she wants to come out and meet her halfway. But honestly, unless it is pitch black or pouring with rain, what is stopping the child walking the drive on her own?

Even if it is pitch black or raining, if you live up a mile track, you have to walk up it some of the time.

Gosh you aren't being unreasonable at all. You're doing her a favour - of course it's fine if that's on your terms (i.e. not ruining your car because she chooses to live like this)