If one believes in something without objective evidence to confirm it, psychological need is in play. If one believes in something without objective evidence to confirm it and in fact plenty of objective evidence to show the believe is false, an even greater and more powerful psychological need is in play. IMO, a psychological need to believe in a God can be very healthy, as long as it doesn't force the person to put them above others and force them to deny well evidenced reality.
Those who choose to reserve judgment on conclusions until evidence can determine if it is likely true, are also following a psychological need - the need to believe things that are most likely correct.
What is the hang up with abiogenesis? Science doesn't claim there is ample evidence to show this is how life began, although many may take available information and think it is reasonable speculation.