Yes it is difficult to make kids drink water in regular intervals, but if you attract them with fancy straws and cups, it can make a change.
Teach and aware your child from a young age how important it is to drink water, and also carry out the same practice in front of them. This way they’ll watch and learn.
Also, encourage your kids to drink water with intervals in schools and outdoor places where they are on their own.
When they reach a certain age, it is sensible to teach your child the indication for dehydration which is the yellowing of urine. This will make them more conscious about their own water intake.