I'd surely go for it, assuming his temperament is good / he's safe for your kids to be around on the ground. Check his teeth--looks like maybe a parrot mouth? Not that it's a big deal, especially since he clearly is keeping in good weight.
My son is 8, is probably 4' 6" tall, and weighs about 70 pounds. He rode an 11 hand pony this summer, but if he keeps growing like a weed, I'm guessing he'll need to bump up to a bigger mount next summer.
I'm not a kid, but at 5' 1" I was quite comfortable for years on my 12.3 hand Welsh pony. I think 11.2 is a great size!
Omg cute! He looks bigger than 11.2 to me, but then again it is hard to tell in a picture. As long as he has a sturdy build I don't see a problem with him carrying up to 100 pounds, assuming the rider is well balanced and has a nice light seat.
He definitely doesn't look like a sh!tland to me, more like a generic pony cross or maybe a tb or QH welsh cross? But I just don't see Shetland in there.
I would take a chance on him, he looks like he could be very fancy.
My friend is going to check on him tomorrow. I can deal with spooky, just not herd bound, spooky, unsound, or quick. My little girl has already had her heart broken by losing her Daddy, so I want to make sure he's a good fit for her sake.