Zoiks! Looks like you're on to us, @2bfree!. 
Wi-Fi troubles can happen even with the latest stuff. Assuming that standard troubleshooting (e.g. software updates, cache clearing, a reboot, checking your router etc.) haven't worked - and even if you've got zero connectivity to send an error report with log files via the Members app - you can always pop in to your nearest Samsung Support Centre to report the issue/have it checked out.
The answer is no, we don't embed Wi-Fi drop-off suicide switches on our products to make you buy new ones.
And I've moved the topic to the Smartphones board for you. 
Standard Wi-Fi issues? Connectivity issues can happen with devices both old and new – and due to a variety of factors that may be happening at either or both ends of that connection.
My sister has a four year old S6 edge and that’s always been fine on Wi-Fi BTW. (Forums like this place tend not to have posts from all those folks for whom things are working fine, so it’s easy to think that something’s more widespread than it really is.)
If you're talking more generally than Samsung phones: there’s progression and obsolescence inherent in all technology in general, and a quicker pace of that more recently – but that’s more of an inevitable reality of advances in human knowledge and ability, and current society and culture than a deliberate, nefarious corporate plan of Samsung’s… if you want to go a bit deeper and wider.
