U2 wants to protect fans from scalpers, so we have to use our credit cards to enter the venue. I got to the Houston show at noon. My 15 yr old son was studying for finals and had practice. He was going to join me at the venue around 7pm or so. Problem: because I bought tickets using pre-sale, my son and I couldn't enter the venue at different times. So at the last minute, I found out my son the U2 fan wasn't welcome unless he skipped school, gave up studying for finals, skipped practice, and went with me at noon. The members of U2 have children. Surely this unintended consequence of the ticketing system can be fixed so families can attend shows together?????