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You literally missed the most important part:

"A transition from IPv4 to IPv6 seems far more easier especially since we already have 77% of people on IPv6."

So to the extent they're aware of the "issues" you bring up they're already on top of it.

ISPs providing IPv6 connectivity out of the box does not equal software and internal devices doing the same.

You can route internal IPv4 networks over IPv6. There are several mapping strategies so this can even be transparent at your v6 gateway.

But note this only gives you access to v4 addresses, not to v6 ones. You do need v6 internally too.