My 19 year old granddaughter is in Barcelona as part of a trip to a music festival. In spite of my warnings she and a friend had passports and euro cards nicked from a beach there! Hope your visit was trouble free! Why is it that youngsters between about 15 and 24 ignore advice from those who have been around the block?
"Why is it that youngsters between about 15 and 24 ignore advice from those who have been around the block?"
Because they want to go around the block themselves, without interference from older people who mean well, but actually detract from the sheer thrill of discovering the world for yourself. The hardest thing about being a parent is learning that there comes a point when you just have to let go of your child and trust.
You obviously did not realise I was being ironic. I probably have more experience in this matter of knowing what youngsters are like, even than you!
The OP mentioned Barcelona, and a 19 year old granddaughter (615 UCAS points Undergrad at UCL, on course for a First) is there as part of a music festival holiday. Granddad (me) provided a lot of spending money - split into two currency cards. I advised her to have a photocopy of the id page of the passport and that there was a great risk of thieves. On her fist day, she and her friend went swimming and their passports and a currency cards were stolen. Fortunately the back up plan went into action. There is a difference between "interference" on life issues and practical advice from one who has had interesting safety issues in Karachi, Nairobi, Manila and other "hairy" destinations. Of course I agree with your general premise.