Sorry - very first world problem! Am arranging to go go karting for my 13yr old birthday with 7 friends. My OH thinks we should meet at the tube and take them all with us. The go karting is strictly timed so I’m worried if any turn up late it’ll scupper the whole thing. The location is tricky to find, so that’s the positive of taking them with us although we can give instructions. Also is 7 kids too many kids to manage on a busy tube? Maybe better to ask the parents to get them there independently, then we can bring them all home after. Grateful for any advice