Most “hodlers” are also accumulating more are they not? And to accumulate you have to transact on chain. There are also points at which it is advantageous to spend some of the capital to improve one’s life. Or you hear of hodlers consolidating UTXOs which is another transaction. I don’t think there are many that just have old coins and just sit on them without accumulating, sellin to buy things, or consolidating. So I don’t see how the network just stops being used. Because everyone is just hodling seems extreme.