It’s very easy to think that singing low is easy and that hitting the high notes is all we need to focus on. It’s so important that we really spend some time getting used to singing low. Low notes help support the higher notes.
If we can sing notes in the bottom end of our register with no issue at all, that will support and encourage the high notes. It also helps ensure that our technique is correct even when we’re singing in the ‘easy place’. I can also guarantee that some of the best vocal progress happens when working on the low notes.