Well it also depends on other factors as well. For example if you’re sill in your teens and living at home, with no means to drive yourself to a Catholic Church, then you’re sort of at the mercy of your Mom as to where you go to church at.
If she’s attending a non-catholic church then be respectful and listen to her so as not to be disobedient. However, perhaps you can suggest attending a Catholic Church so you can both get a feel for it.
If you’re older and not living at home and your mom simply wants you to attend church with her on Sundays, there isn’t anything inherently bad with that, but going to Mass should be your priority and if possible you can try and work out a time to attend church with your mother.
And if your mom is barely showing a desire for going to Church and she hasn’t set her mind on which church is going to work best for her, then definitely suggest the Catholic Church. There are numerous tools and resources online that can help you both learn more about the faith and what is involved at Mass.