Ultimately, investing in a beginner board rather than an advanced board depends on your child. Some children, typically kids who are 8 and up, will do fine if they go straight to an advanced board. This is because their gross-motor skills are more developed and they can handle sharp turns and falls without much fuss.
However, if a child is younger than 8 years old you might want to invest in a beginner board. Beginner boards will help your child stay balanced and ensure a safe transition from beginner to advanced boards further on.