My two use a smart phone for the bus app which saves me many £££ through the year as it's a cheaper rate and has their youth discount card registered on to it.
Cash is a pain (in addition to being more expensive) as there are fewer ATMs in recent years to be able to access it easily. Also with impaired executive function one tap of a QR code is simpler when burned out after school than finding bus cards and faffing with change with a busy queue behind you and a driver whose schedule has been based around tapping on/off.
This is the way the world works in 2026, and this is the world that I'm "training" my (autistic) children to function in.
(Incidentally I was at the GP's yesterday and the number of older people struggling or needing support to use phone/ computer based systems to access services was sad, but that genie is not going back in the bottle either)
I don't routinely track my DCs, but a smart phone means that if they have a problem they can ping me a GPS location. This was useful when hypermobile DS2's knee pinged with a dislocation so I diverted home from work* to collect him. This was also useful when there was traffic carnage during a storm which delayed and diverted the busses through parts of town that DS1 doesn't know. Being able to talk to eachother and show mapping helped DS1 to avoid autustic meltdown in a difficult, unpredictable situation. There are times that the buses are delayed and he opts for the 3 mile walk instead, but his route was obstructed by fallen trees and walking was not a safe option that day.
(*a rare perk of working in schools; finishing at a time and location that enables me to support my DCs if needed)
The climate of schools and safeguarding has changed. When DS has risked lateness because of bus delays and jogging 3 miles at scout's pace looks like the better option than waiting, he's been able to phone me to let his school know about the issue. The pub across the road is of limited public use to an autistic teenager at 7:45 am. There are no payphones along the route or indeed in my neighbourhood.
I have no issue with phones being put out of use during the school day (pouches at theirs, collection at mine) but phones are an essential tool of getting out and about with public transport in 2026.
I also resent the ageist continual insinuations that all teenagers are using smart phones and social media irresponsibly and harmfully. Yes there are widespread issues and controls are needed, but a large proportion of teenagers are sensible too, and they should not be penalised or endangered by knee-jerk virtue signalling reactions. The problems youths involved in inappropriate bullying, content and grooming are not going to be miraculously solved by preventing phone use while commuting. I've raised my DCs with technology introduced at practical times, and age-appropriate controls and discussion about why those limits are there.
I would also be very intetested to see what proportion of MNers would like to do my DCs' commute by bus or foot at twighlight without a phone... or indeed at all...