Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

Is it ok to have multiple life time free credit cards?
Do you need it? It doesn't sound like it - you seem to be able to manage with just the cards you have.  Will it hurt anything? Probably not either, unless it entices you to spend more than you make.  Another downside might be that you would spend more than you normally would just to have activity on every card. So all in all, I don't see much upside.