Modern bikes come in a variety of designs and speeds. They are all derived from single-speed bikes of the early 1800s and are still quite popular among beginners and professionals alike. Children in their pre-teen years are probably more enthusiastic about learning to pedal and balance on a bike than an adult who is just starting.
Still, biking is a great way to get outside, especially if you're in it for the thrill and adventure. But before you become a professional and choose a 'complex bike', it is best to look into the benefits of a single-speed bicycle fixie.
One of the more obvious reasons beginners loves 'solo' is because of its simplicity. When you take a look at the 'single' you'll notice that there is only one sprocket each on the pedal crank and rear wheel. You may notice that there are no cables or shifters either.
Thus, no shifting gears while riding the bike. This design is quite attractive not only for beginners but also for those who are looking for a simple yet attractive bike to ride from one place to another.
Another obvious reason is low maintenance. With a more 'complicated bike', you are obliged to maintain and care for the gears and parts. And, of course, the more parts and tools you use, the more responsibility you have in terms of fixing things and keeping them under control. More parts and gears also mean more weight. Simply put, a 'solo' is easier to handle and maintain, whereas a complex bike is an opposite.
Riding a single-speed bike is also a no-brainer. You just pedal to move forward and you hit the brakes and stop pedaling to stop going forward. If you are going to use a 'single' on the road and not indifferent terrains, this may be the best option for you.
So, if you are a beginner or if you are getting your first bike, it is best to choose a single-speed bike. It can take you anywhere, as long as there's a flat, paved road ahead and you're wearing appropriate riding attire.