Likeliness that each individual would only have 1 Th to their name is low - it’s one of those things that you end up having - let’s say an Avalon 3s , or a bitaxe with 8 asics.

But truly I see the future of home mining where your main heat sources are from a miner or 2 - that heat your water, underfloor heating, radiators etc etc replacing boilers and the like. This way the hash is a bonus and not a hobby. Want a warm house? You’ll be inadvertently hashing - warmth comes first