Other sports and youth organizations work just fine without children being alone with coaches or other non-related adults. Sure, it can make things a little more conplicated, but it can work as long as parents and coaches buy in.
No way I would trust my child with a coach who was willing to violate policies put in place for my child's safety.
Have parents meet up at the airport with other families - from other teams if need be. Multiple kids and coaches can then travel together. When my boys attend Scout camps, this is what they do. No non-related adult alone with a single child - EVER. This won't prevent every instance of abuse. However, if it prevents even 1 child from the horror of abuse, we have to all get on board.