So, we have a proposed law that will do nothing to stop criminals from:
-- Using a fake ID to purchase the phone
-- Forcing, coercing, or paying some sap to buy the phone for them
-- Stealing phones, either from a store or an individual
On the latter (and expect such thefts to multiply several-fold if this passes), if they steal from an individual, they often think they've just misplaced or lost it, and it may be some time before they contact their provider and have the service suspended. Even a store theft can go undetected for several hours, add on a few more to determine which phones (numbers) have been stolen, a few more for the bureaucracy to get those numbers blocked, etc. In either case, a thief could easily have 24-48 hours of use before the phone is disabled or monitored. Considering many crooks go through prepaid phones like candy anyway, this won't slow them down too much. That only leaves the dumber crooks, and if they're stupid enough to buy a phone with their real ID, they're probably stupid enough to get caught pretty quickly even without this law.
On the other hand, this law would enable law-abiding users to be more easily tracked and identified by criminals, private eyes, general snoops, bill collectors, stalkers, blackmailers, and so on. Not to mention the guvmint, should you happen to hold ideas or engage in activities that, while not necessarily unlawful, are considered a "threat" by whomever is in power.
So, all in all, we have a law that would (a) do nothing to reduce crime and, indeed, likely increase it (the aforementioned assumed rise in phone thefts), while (b) inconveniencing, harrassing, and possibly endangering law-abiding citizens.
In other words....typical.