I have largely brought my DC (late teens and older) up as I was brought up - namely without using technology. So no tracking apps, no 'find my phone' (I don't have a smartphone or ipad).
However, I do expect them to tell me where they are going, and when they will be back. I expect them to let me know if there is going to be a significant change of plan.
It doesn't always go as well as it should, and there have been times when they haven't told the truth about where they are or who they are with. This has resulted in me tightening the reins a bit until they have earned back some trust.
If I am going to trust them and not check up on them, they have to be trustworthy.
With the 18+ DC (who would not have been at home since March, were it not for lockdown), I ask that they give me an idea of when they will be back, if they are going out, and I also ask that they come in quietly so as not to wake anyone else up. This is just basic consideration, though.