As far as I know, Bitcoin miners use a complex algorithm to verify each Bitcoin transaction and store it in the blockchain in the form of a block, due to which each transaction is stored in the blockchain as a valid transaction for its entire life through a distributed ledger, and since these are connected to many blocks, no illegal transaction can ever be validated. And for these tasks, miners get some Bitcoin as a reward and in addition to this, the miners get the transaction fees that are deducted when we make transactions.

But since there is a fixed supply of Bitcoin, at some point the supply of Bitcoin will run out and miners will not receive new Bitcoins as rewards, so they will have to rely solely on transaction fees. If Bitcoin miners then voluntarily stop their activities, new blocks will not be created, and if new blocks are not created, our transactions will not be confirmed. If Bitcoin transactions remain unconfirmed, then how will Bitcoin users successfully transact Bitcoin. If this ever happens, will Bitcoin be able to survive in the market? And does Bitcoin depend entirely on miners? And since Bitcoin mining prevents illegal Bitcoin transactions from being validated through Proof of Work, do you think there would be a chance for illegal transactions to occur if mining were to stop?

Although miners will never stop mining Bitcoin because they will get transaction fees for life and as time goes on the volume of Bitcoin transactions will continue to increase and from there they will get a much better amount of Bitcoin. But imagine what will happen to Bitcoin if Bitcoin mining is completely stopped?