I know a lot of people use smart bulbs but why.?
They are a LOT more expensive than a plain dimmable bulb.
They last about the same length of time (more complicated so probably a bit less)
When one does go (look at MTBF figures) you have to pair them rather than just get one out of a box
How family friendly (WAF included) is that ?
Tradfri tend to come on at power up, a LOT of lights on whilst you are on holiday following a power cut.
A smart switch : -
Wired directly in circuit (anyone standing by the switch can operate it)
Dumb (cheap) bulbs
No need to pair, set brightness levels, set in scene’s (high WAF factor)
Can be controlled from ha directly for use in automations/occupancy/interactions
No need to dig out a phone or a remote for basic use