Yes, not sure of the concept of harder, just depends if you want to wait 30 secs for a kettle to boil or 5 minutes for the hob to do the same job for 5 times the cost and 20% of the efficiency.
The concept of boiling water on a hob in the UK doesn’t exist.
If you want to watch a fellow American explain it in detail this guy takes 24 minutes to explain all the benefits: