If you can't convince a friend to join you or prefer a solo adventure, no worries! As a woman who's biked and camped alone more times than I can count, in the United States and abroad, I say emphatically YES, it is safer than you think. Especially if staying at a developed campground, you'll likely feel quite comfortable amidst the families and other friendly groups nearby. The chances of any negative encounter with humans or animals are extremely small. Your biggest risk, honestly, is traffic. Focus your anxiety productively on choosing a bike-safe route and riding safely in traffic, and then just relax and enjoy your adventure.