In reply to Superchop75: No, not at all. I just did my MIC training and I'm 38 this month.
However, you DO need to be mountain fit. I am not currently not nearly fit enough to pass my assessment and will need to work on my fitness. However that will come from 2-3 months of spending 20+ days a month doing big mountain days, which I have not been doing, living in Somerset.
Email me if you want any more info on what the training course was like.