One Ton Soup- Beware of Internet Cars...they`re always perfect
I really do keep mine virtually marring-free for years on end. You wouldn`t spot anything under any conditions without *really* working at it, and then anything safe-to-correct would be in places nobody sees. Keeping a daily driver marring-free really can be done. BUT...nobody I know washes the way I do and it`s not cheap or easy.
Some light marring can maybe be hidden, but IME that doesn`t work that well IRL (works fine for internet pics in some cases

Cynical ol` me...). Some people apparently do great with Black Hole, but I`ve never tried it.
Here`s the Magic Key Point: If you press something that`s harder than the paint against the paint, and then move it across the paint under sufficient pressure, the result is marring. If you avoid doing that, you won`t have swirls/scratches/etc.
I avoid it very well by employing a "dislodge and flush" approach to washing. My rinse buckets are always dirt-free at the end of a wash, even on winter-filthy vehicles, because I gently dislodge the dirt and flush it off the vehicle by pressure washing first and then using the right wash media and constantly spraying foamgun output at the point of wash media-to paint contact. Takes a *LOT* of practice, pretty much time, a fair amount of effort (tough as a make-you-sore workout, tougher than running a few miles IMO), and lots of water and shampoo (minimum of ~7oz and a few times that much sometimes). Not the right approach for everybody, but it sure works great for me. Note that it took me dozens of washes to get even the basics sorted out, and quite a few years to get completely dialed-in. Gets back to "how much do you care?" and I could even add "...and why?" Don`t let guys like me cast the Curse of Autopia over you...you can have a perfectly great Car Hobby Experience without having perfect paint. It really only matters as much as you let it. There`s a lot more to "properly taking care of a vehicle" than having marring-free paint, that`s just superficial [stuff] that some of us care about for one reason or another; it needn`t matter to you at all.