Is it? Because as a teenager 25/26 years ago my whole class had mobile phones and we'd text each other from across a room and play snake while chatting on our Nokia's. Prior to that we all had tamagotchis we took very seriously and would be studiously caring for for entire break times.
People like to paint the past in rosy colours, what I suspect most teachers who are complaining don't like is that previous generations we were taught blind compliance and obedience. That's no longer what kids are being taught. The majority of people complaining about children's behaviour and the rise of acknowledgement of developmental differences aren't complaining because they're worried the kids are being done a disservice, they're complaining because kids being treated like human beings inconveniences them.
My parents would chain smoke with 5 of us stacked in the back seat and no back seatbelts anywhere on the 80s.
We'd never drink water (we being all my friends too) and instead of was squash or fizzy juice.
We'd be turfed out of the house at 7am in the holidays and only allowed back in at mealtimes (and actually my mum wasn't fully like that despite having 5 of us so the whole street would congregate in our house)
People say the world was safer but as someone who ran in large multi age 'play groups' of children I can tell you it wasn't some idyllic time, there was a lovely freedom, yes, but there was also a co.plete vulnerability of the youngest kids placed in care of older kids who had a similar loose parenting.
Everyone bleats for the past but I'd love to go back and offer us as kids the kind of understanding and support my kids get these days. Also availability of I formation and learning tools. It was also more acceptable back then to just let kids fail and fall through the cracks, I wonder if the boys I went to primary with who were bad and from bad families could have not ended up in borstal in their teens if they'd had more support and less just being expelled and left to it.