Firstly the USB-C power cable seems to be designed to have a very light grip on the port, so it slips out easily if anything snags on the cable. (If anything, the worry is that a slight tug can make it slip out unnoticed and stop charging).
Secondly, because it’s got plugs at both ends of the cable, it can pull out from the wall end just as easily as from the MacBook.
http://www.macbookadapter.com/magsafe-2-to-usb-c-power-adapt...
But it is really bulky, not cheap and limited to 60W.
Got them for 2 for 35$ on MassDrop.
2. I started missing the magsafe's light the first time I thought my computer was charging but it wasn't (dead outlet before a long flight, so zero charge). Now I open my laptop every time I plug it in a new outlet to verify that it's charging.
Of course, I don't need a magsafe port to solve these, just a special USB-C cable, which is a better solution.
So the only remaining thing I liked about the magsafe was how shallow the port was, which made it easy to clean. Recently I somehow had a tiny pebble or something in one of my USB-C ports that rendered it unusable until I could get my hands on a pin to pry it out.
Right. But as the USB-C cable has sockets/plugs at both ends, it’s hard to imagine a situation where it won’t safely pull out at one of the ends, at least.
I’ve had a couple of “trip” incidents with my USB-C MacBook and in both cases, the MacBook did not fly off the table nor was there any damage to the cable or ports. (Both of which did happen to me in the bad old days of pre-MagSafe PowerBooks!)