Sorry. But no. Going to the toilet when you don't need to/just in case won't fix anything and can trigger more issues.
It's a bad habit that isn't good for anyone's bladder/continence.
I think it depends on what you are trying to achieve, I didn't mean to suggest he go when he doesn't need to but I have seen toilet timing work effectively.

I am not a continence specialist however, its just IMHO from what I have seen help some children in the schools I've worked in. Definitely find a specialist to give you the right advice that is specifically designed for your child's needs.