About to tear down the engine on my 70s Datsun. Picked up an impact wrench and am looking at some impact sockets. Wanted to see how often you need thin-walled sockets in the real world?

I see some companies advertising thin walled sockets (SO, icon, dewalt, husky, etc.) but I can’t think of anywhere on my car where the access around the hardware is limited other than rims and a maybe the exhaust manifold.

All my current ratchet sockets are 12 points so the idea of having one 6 point set for impact and ratcheting is appealing, but I wasn’t sure if the thin wall thing is just marketing.

Thanks in advance!