I hope riding with your daughter will work out as well for you as it has for me and my niece. My daughter is into horses, as is my wife, and I was not riding during that time before college, so never thought of riding with her. I started cycling again last fall, and one weekend asked my then-15-year-old niece if she wanted to come along. We did a 7-mile loop on our cheap mountain bikes and she had a blast. We worked up to almost 20 miles, riding almost every weekend. When I could see she was committed to riding, I bought her a Trek 1500 of the same vintage as my 2100. Our last ride was a charity ride of 50 miles; 2 weeks before that was a 44-miler; in another few weeks we are trying for a metric century. All the riding has been fun, but it's also been great to build a stronger bond with her as we talk during those rides. Speeds are not fast - usually averaging around 13mph - but that's really not the point.

Good luck!

Attached photo from the 44-miler.