Not actually, the material of plastic frame basically is material of all sorts of plastic high polymer, therefore, their quality mainly depend on the micro-structure of polymer materials and the processing technology. Generally speaking, they are durable, shock resistant and are suitable for long wear.
Plastic frames are non-sensitive and light enough to be suitable for children and people of all ages. However, their weakness is that they are easily deformed, but not easily broken. If you're looking for delicate craftsmanship, you may consider titanium and metal frames.