They are heavy for expensive wheels and I (now) would never ride without a tyre insert, adding even more weight. Riding pricey carbon and no insert means you may as well flush your cash down the bog. Stans Arch with inserts works well for me and I'm 110kg (240 pound) and a pretty hard rider. I can't really see the point in them.
I agree about resin, I run oneup's on my bikes. I did toy with drilling the stock pedals and putting pins in too, but didn't. The pins are key. You can washer the Chromag pins to determine how much pins shows. I've already increased the pin height. More grip the better it seems, just need to keep the kid in trousers to slow down his shins looking like his dad's too quick!
Pedals are the key to learning and enjoying riding for the little people. My boy's Commencal Ramones 14" has great kit and good geo, but the pedals were like bars of soap and led to a lot of frustration. I looked and looked, but the only 'real' options were Chromag and Hope. Chromag won. Lots of money, but he will have them until he is ten (he's three now). Crazy purchase but worth it.
Vik, that opinion is too Fox news vs CNN. Mainstream culture means to like one thing, you've got to hate another. Look at Trump and Brexit. We don't need that in MTB. I don't see a problem with hearing about a bit of everything.
I changed the (drum) brake pads in my VW beetle about thirty years ago, just before driving 300 miles to London to see Prince (RIP you purple poet), only to get about ten miles from in to the journey and find they didn't work; I clipped a car and rolled down the middle of the road trying to stop, passing a police car in the queue of traffic. Police didn't care, nor did the other driver (quite chilled in Cornwall). Carried on to London. Just looked a long way ahead. Use that same skill on my bike now.