I don't think that's true Andy. It doesn't seem to me that experience of life is what builds faith.
So are you saying that, when you wondered about who was going to collect you from school when you were at primary school, you didn't rely on your experience to tell you who would? I realise that this may seem a very simplistic example, but talking to people from damaged homes as I have done over the years, especially those who have been fostered or adopted, I have been amazed at how many people (even fairly old folk) who said that it was at this level of fear/faith that they began to rebuild their lives. Suddenly, as they saw it, rather than being left behind to wait for 'someone' to collect them, they were amongst the first to be collected and by the same person(s) every day.
Child development is all about developing trust and faith in people, and in many ways a Christian faith is no different. We start off trusting God because something has touched us in a way that nothing else touches us; we start off tentatively, unsure about our decision in most cases (and I think that this is one reason why some people start off their Christian lives at such an incredible pace - uncertainty can breed a brashness that is merely a covering for the uncertainty). Over time, as we see things happen to us and to others, and as we get to know Christ better - through prayer, through fellowship with other Christians, through reading the Bible, etc. - that uncertainty becomes less marked: it doesn't mean that we don't continue to doubt, but it means that we have experiences to refer back to that point to the emptiness of that doubt.
For example, if one relied on experience, most people, having never seen a miracle, would never assert that supernatural, miraculous events occur.
Sometimes, I wonder whether we, as humans [not merely the Christians or religious folk amongst us] ascribe to much to the miraculous. As such, I don't think that your comment here fully represents human thinking. Yes, I know that there are plenty of people who - in the rarefied confines of a virtual community like this - state they don't believe in the miraculous, but I have been amazed how many of those I have met in the flesh from such communities actually make comments such as 'It's miraculous how such and such a thing happened'. They may not mean what I mean by miraculous, but there does seem to be an innate assumption of the concept.
Often Christians believe what they believe, not because of experience, but despite experience. They believe what they believe because of what they've been told by other Christians, or because of the accounts in the Bible - but most importantly because it gives them something.
Not sure that being given constant grieve, ridicule and the like, as happens to so many Christians across the world, is necessarily a positive draw for people, Martin. As for believing 'despite experience', there is something true about this. In a few minutes, I will be driving over the Bridgend and the heritage railway that I am a member of. Over the years, bits of the track and associated hardware have been stolen by metal thieves largely because no trains are actually running yet (we are working hard to rectify that!!), but since this time last year, we have noticed an increasing number of incidents of theft. To combat this, we instigated a system of 'walking the line', especially in badly effected areas, and marking obvious signs of theft (such as freshly cut rail, or gaps on sleepers where the 'chairs' that hold the track have been removed), as well as reporting the thefts to the police. It hasn't stopped the thefts, but in several places it has reduced them - but we are now finding new theft sites. Today, I will be walking the full 4.5 miles of the track looking very carefully for any such sites in the belief that, by doing so, we will give the thieves a message that we are aware of what is happening and acting on this knowledge.
If people really stepped back and took a completely objective view, based only on experience and reason, their beliefs would change dramatically.
And f you listen to the testimonies of many Christians, this is precisely what did happen to them and led to them
becoming Christians. At the same time, life on earth doesn't often work in a rational and reasoned way, so I'm not convinced that basing one's whole life on reason and rationality actually helps us.