I think her pride might come from setting herself a goal, and then meeting that goal - so good for her! Just like my best friend set herself a goal not to drink caffiene and did it - good for her! No way am I giving it up though!

If you have birthed in a way you found best FOR YOU, and parent in the best way you possibly can, you should be very proud! I mean, sure, there are studies that show the pros/cons of intervention, but you do what you think is best at the time, with the knowledge you have.
Epidurals aren't necessarily great for everyone, and perhaps many people utilise them because they're not aware of risks and other options like natural pain relief and excellent birth support. BUT, we come back to this - of course, you did what you felt was best for you with the knowledge you had - and you birthed a beautiful child! No reason not to feel proud. Well done!