Just a general note on home automation - you say you're new here but not whether you're new to home automation. The best home automation is usually when you never need to open a dashboard or do anything - lights come on and go off via motion/contact/presence sensor automations, fans can turn on based on temperature or time and/or motion, and you never really have to think about it to enjoy it. I don't mean to assume anything, but if you're planning on giving them buttons on a dashboard to turn stuff on and off, they will grow weary of that process relatively quickly.
It's not that buttons aren't useful, they can be. My family has a penchant for them - so I give them to them via physical buttons/remotes near the devices (lights & fans usually) that they want to control. That ease-of access (don't need to get my phone, don't need to wake up my phone, don't need to find the Hubitat app and open it and go to my dashboard) is what will make this stuff stick w/them.
And If you are going to use dashboards on Android phones/devices, below is an amazing option - you can set it up on each family member's phone w/different setup. It's a great app.