A parent who is laughing or encouraging bad behaviour yes.
I think what a lot of smug parents don't realise is they implemented some boundaries and routines and their child responded well to it. Due to their child's personality.
Imagine you do all of that and then your child doesn't listen or care. What do you do?
Parenting techniques are basically-
Reward positive behaviour
Discipline negative behaviour
Teach age appropriate consequences/impact of actions
If children don't respond to that what do you do ? Well you can-
Bribe
Shout/threaten
Hit
Ignore
These days most people avoid the hitting. Shouting , threatening and bribing aren't particularly nice or always feasible so parents end up picking their battles.
I say this as a parent who after raising two delightful children who would sit and colour in, who always did as they were told and responded well to parenting techniques. After being a chidcare provider who has worked with at least fifty children of varying needs. After completing a degree in early years education. After working as a parenting support worker with vulnerable children and delivering parenting training to struggling parents. Being trained to deliver Solihull parenting, Incredible years and Triple P. I gave birth to a child who does not respond to traditional parenting methods.
I had to learn a completely new way of parenting and to pick my battles. I regularly look like a shit parent when the reality is I'm an extremely qualified parent. If I wasn't as experienced as I am I would blame my self (like many others do)