Are we talking about BCA Awards training or the BCA caver training supported by the BCA Training Officer and Regional Training Officers? Either way, no to requiring it IMO.
Recreational caving should not be shackled to the need for qualifications or certification. Clubs should of course consider their own requirements for appropriate experience for those leading others (with support from BCA), but caving as a sport has existed far longer than 'awards' or formal training. I understand when it comes to introducing under 18s to caving in the club setting that it might be desirable to use qualified (or at least 'demonstrably competent') persons for insurance and parental piece of mind reasons, but adults can choose to spend their recreational time as they wish, with whoever they wish. Those who seek further training from a qualified instructor will, but most are content to learn from peers informally. That is surely part of the attraction of joining a club and engaging in social physical activity. I've been hired by recreational cavers for formal training on occasion (and had several ex-clients go on to join caving clubs), but I'd not like to see a BCA that requires it for the recreational world. I make most of my income from leading caving groups and training cavers, but I'd hate to see formal training mandated, it'd just kill volunteering in the sport dead. As well as a being caving instructor, I am also Chair of a large club (and a small one). I see where the two worlds can interact for the benefit of all, but am more than happy that the 2 sides of my caving life can remain separate.