Bad parent

So would I be bad mom if I didn’t bring my child to be that much around his grandparents (especially my father in law)?

I mean I will bring kid 2-3-4 times a week,but the problem is that my father in law is bad influence.

When my sister in law give a birth to her son she needed to return to work after 40 days so she left him with in laws and kid loves his grandparents.That is great but when he became older (teenager) he want to try alcohol cigarettes and my FIL saw all of that but did say anything to kid mom (my SIL).She found out later all of that and that he was keeping that secret.

I just don’t want something happened like that.