Tap water burns are a leading cause of nonfatal burns. Children under 5 years of age are the most frequent victims of such burns. That extra 2 minutes could be enough to get a child away from the hot water source and avoid a burn. The thermostat for the valve can be set between a range of degrees.
Some states require scald-resistant faucets in all new construction.
You should have scald-resistant faucets installed in those sinks or bathing fixtures that children use. You may need to have a plumbing contractor install these faucets.