Not enough. Debit cards should not have any lounge access at all except perhaps a few rare ones where a high TRV is required and even then, there should be some further conditions based on spends. Entry level credit cards should not have any lounge access. Mid level ones should have a spend based fee reduction like spend 20k per month and the bank would subsidize 1 lounge visit by 50% and the customer pays something like Rs 350. Only top cards should have lounge visits but again with a minimum 50k per month spending per card with a similar requirement for each add on card. Unlimited visits, where available, should require a minimum 1 lakh per month spend. International lounge visit should also require a minimum 50k spend AND the ticket should have been purchased via that same card. Why should a customer give business to another bank for buying the ticket and expect a different bank to pay for his or her lounge visit?A very welcoming news for premium card holders.
This is just the beginning. Expect the spend based requirements to become higher and higher to the point where only elite customers would get lounge access. The lounge operators might start their own promos where you can directly purchase a visit for 250 to 500 or the airline offers it when buying a ticket. After all people pay 500 to 750 to choose a seat.