I'm with
@EarthDog on this....
Built a PC for my sister and her family... No overclock no nothing. I will possibly end up swapping it out at some point for a Ryzen system since at the moment a dual core Celeron is probably not the best thing in the world for them (granted no high end gaming etc and just browsing the internet) but still.. Overclocking can just lead to problems, give them a hassle free PC experience
Again as EarthDog mentions, no point overclocking for the average user, they aren't going to be saying "Thanks, that extra 1.76% of performance by overclocking the RAM is really noticeable....."
(1.76% was just random numbers and not actual figures or fact

)