Or perhaps the bitcoin devs could simply create a new protocol to invalidate or permanently lock up ancient wallet addresses that were made under the original less secure system of addressing,
which would not effect the more secure SHA-256 wallet addresses in use today. Just an idea, don't know if that could actually work or not.
how about live by what you preach to prove your theory
from the age of 18 people work and employers start funding a pension... so when you get to 33yo the government should lock your pension and you lose all access to funds accumulated....
.. i bet before you hit reply you are not happy with that idea that if not spent within 15 years you lose your wealth/pension