You have my sympathy. This summer our kid signed up for a cross-country ski training camp that requires getting her to and from the site, ten miles from home, three days a week. She gets a ride there usually, but I have to drive to work so I can duck out and pick her up to take her home. At that point, it really would not look too good for me to get on my bike to go back to work and arrive close to noon.
What really gets me is that I am driving her someplace for the purpose of getting exercise. If I were doing it, I would ride my bike the ten miles, do the training, and thus REALLY get some exercise.
What also is interesting is that, when I was 17, I wouldn't have considered riding a bike ten miles, or if I did, I would have considered it a great accomplishment. Now, almost 40 years later, I WOULD consider riding ten miles to and from a physical training camp and I wouldn't think too much of it.