There is already the need to support alternate input mechanisms in the form of accessibility and keyboard navigation. Creating UI widgets that work well everyw

There is already the need to support alternate input mechanisms in the form of accessibility and keyboard navigation. Creating UI widgets that work well everywhere is a non-trivial task that is frequently underestimated. What this really highlights is the need for high quality UI toolkits which abstracts these details. If a developer is complaining about supporting mouse and touch, then they're most likely missing out on many more details and should be using some pre-built components instead.