Like the Romans used to drink from lead cups. Something like that.
(it appears that the moderator is removing any replies with which he disagrees. It might be a piefed issue. But all the removed replies are top level and upopular. Stranger coincidences have happened I suppose.)
You have never experienced static electricity discharge? There is a reason grounding straps are used in electronics laboratories. Surely you have played with a van der graaf generator before.
In the risk/reward area of things, the downside of grounding is minimal to none, the upside is it might help, and it costs nothing to do. <shrug>
Yes, the reason is that tiny transistors in microelectronics get damaged or burn out from the static shock. Last time I checked, I was not a transistor.