Crypto without Internet IS impossible the process of mining involves computer processing hardware being utilized to verify transactions on the bitcoin blockchain. In order to mine you REQUIRE internet access.
I think that until now it has not been not been that there is any transaction that uses a network does not use the name of intenet, of course a very unreasonable thing. Moreover, with what you say "mining" involving / using hardware for a processing, of course, will check use the internet. While if the internet is not stable, mining can fail, how could it not use the internet? Impossible ....
All the seniors here have answered, more or less gave the same answer, no one will believe in crypto without internet.. even now we are going deeper into the digital world.. for now internet is an obligation, probably for everyone.
Our hope is not crypto that can be transacted offline, something that is impossible.
we need an internet connection, and also like connection fees.. if the connection is good and the cost is cheap, I think this is our hope, hopefully the government will make it easy.