I had been to 2-week long overnight camps on a college campus, followed by 2 weeks staying with various friends in the state I used to live in, followed by a solo flight home, when I was in 10th and 11th grades. I still wouldn’t have been comfortable going to a campus, staying in a hotel on my own, and navigating tours and solo meals at 18. I had no issues once I started college, and even gave up a meal plan after the first semester, preferring to cook in our tiny kitchenette. My family was hours away and I didn’t go home for months at a time.
Honestly, even as an adult I still don’t love navigating public transportation or uber. I’ve done it, but it’s not a part of my daily life. I doubt I’m in a place with significant public transport more than every few years. I’ve never been bothered by navigating airports, though, and did it solo (and even harder, solo with a baby and a toddler!). Spouse, on the other hand, frequently travels for work to a few places that have public transport so it’s no big deal. Ever since the kids were younger we’ve had them navigate for us when we have extra time, so I think that they could do it if they had to. In our area, being comfortable driving for a few hours at a stretch is a more useful skill. We have older drive home from activities and recently kid to themselves to a camping activity 90 minutes away.
That being said, the covid effects probably vary a lot between regions. In our area, many things have been normal for a while. I turn over most schedule things in middle school and try not to manage unless asked for help. We homeschool, but I don’t interact with the teachers of outsourced classes - I have the kids email questions or ask after class. It’s the same with sports coaches or other instructors - I try to turn it over to the kids as soon as I can so that they are going to be comfortable asking a professor or registrar for help on their own. I had older drive through the drive through and do other driving tasks as soon as they got a license. Basically I try to put them in a position to do as much as they can while I’m still here to be the backup if I’m needed.