Should I accept this "gift"?

As many of you know, I am newly single. I am trying to learn to stand on my own two feet. I am going on a trip this week and had booked a driver to take me to the airport. Last night a friend said she would drive me. I am worried about depending too much on “the kindness of strangers.” Also, is it unfair to the chauffeur to cancel the trip (he would still pick me up)? It would be nicer and cheaper to be driven. Your thoughts?