Every child develops at a different pace so it can be difficult to know what's normal.
Think of it like a ladder. You might not be at the top right now, but each new thing you learn takes you a step closer and means that your parents can relax the rules a little.
A survey of Australian parents has found many are overwhelmed by the stress of managing their child's behaviour.
Some children's tantrums, irritability and defiance well exceed that typically found in healthy children of the same age. This can be overwhelming for parents, especially as children grow.
Tantrum throwing peaks at age two, as children experience the perfect storm of not being able to express themselves verbally while simultaneously developing their sense of autonomy and independence.