For me, it’s very simple. It’s not enough for me to believe or to disbelieve. I want to know.
You don’t get there by faith.
Yes, although I recognize that simply deciding to believe a set of ideas and acting in accordance with that, a.k.a. “faith”, can have its advantages, it also seems to me to be a self limiting trap, and depending on the particular set of ideas, could be a very misguided way of living one’s life. Conversely speaking, however, persons who are secular and even empirically oriented, live in accordance with underlying assumptions that are ultimately accepted without being proveable, at least, currently. But the on-going openness to change depending on new evidence, is much more appealing to me than the closed structure of most religious thinking.