Thanks for the info. Yes, you make perfect sense.
As to privacy settings on individual corporate websites that you use, that is the realm of those companies. Hopefully, they have systems people that will ensure that nothing is hacked or unintentionally exposed. If your emails are showing up on your kids' cell phones, that issue needs to be addressed and your settings changed. If they are not, then you are safe. Your kids would have to have your password in order to access your correspondence. I assume that your kids are still at home, so make sure that in Windows all "sharing" options are disabled in networking. If your kids are at home and you are really paranoid about this, two routers would be one answer, one for you and one for your kids, each with separate networks and IP addresses. That is rather extreme, but do-able. If your kids are accessing your WiFi from the router, then the individual settings on your cell phone should not include auto-notification copies, etc. and do not share your password(s) with them. You can lock your phone down pretty well in the settings config screen.