Hodu Lashem –
You are so right, and not only in the way you think.
Once your phone number is out there, all sorts of stuff get sent to you from people you don’t even know. While a bochur may exercise good judgment at 2:00pm its a whole other story at 2:00 am… and that goes for us adults as well. That’s why we don’t have internet access at home(and your point of the supper table is well taken)