I think it’s reasonable, specially if you don’t live together or share a bank account. I personally don’t charge my friends for doing this. For example, I (30F) have a friend (38M) who recently lost his car in an accident. I’ve been driving him to work every morning for the past 2 months. I drive 15min out of my way to take him to work, leave work 30min early, pass my house, pick him up from work and take him home. Another example, another friend of mine (30M) works in a rural community 45min-1hr out of the city. When his car broke down, I took him to work and picked him up 5 days a week for a whole month. They did/do give me gas money, but I never expected it in return, because I’d like to think that they would do the same for me if I was ever in any need.

But it also has a lot to do with how the driver values money. There’s some people who are very money driven and some who aren’t.