I have had Android phones with USB-C and other USB-C devices like iPad Pro for many years now, and "dirt and sand can get into it" never even remotely crossed my mind. And yes they have been working just fine -- current phone is 3 years old and still doing well.
Every single lightning cable I've ever owned developed a black corrosion on a pin that prevented it from working. Every. single. one. You cannot claim that lightning is durable. It's completely farcical.
Never happened to me. In my experience lightning ports a as close to unbreakable as it gets given that size factor. In contrast every USB-C port seems to get loose or outright break after heavy usage (including lenovo and MacBooks). I will not miss having multiple cables but I will miss the snug and reliable fit that various lightning plugs/ports have maintained over years in my service. It's probably time to move to wireless charging anyways
Wireless stuff is neat I guess… but it takes up much more space and is much less efficient. The power loss alone seems like a big deal that we don’t really consider. Not to mention that it’s not really any more convenient than say MagSafe is. I find my phone uncharged in the morning far more often because I didn’t align it properly with the pad, than because my cable is going bad.
I will say, it’s nice letting my phone stand also charge it… so I’m also kinda a fan.
I could show you my collection of broken lightning cables where the plastic just before the "meat" of the connector is split, leading to visible copper/whatever cables. Which in turn leads to broken copper/whatever cables, which are at best broking the functionality, at worse dangerous (is it?).