Assigning IPv6 /48's to CPE's?

It should probably be pointed out:

Asking for practical advice on choosing /48 vs. /56 on a residential
broadband CPE is largely unanswerable.


Because I don't know of any residential broadband CPEs that support IPv6.

This is the same business that had a small to-do some 3 months ago when people
realized the IPv4 routing table was about to hit 240K entries.....