I agree with you OP, YANBU.
My ds1 is in y5 and loads of his peers have been given smartphones for their 10th birthdays or will be getting them for Christmas.
I'm grateful that ds1 is still asking for Playmobil for Christmas 🥺 I might get him a brick phone for his birthday next year. Both him and my ds2 have refurbished, heavily locked down iPads which I do restrict access to, but I even regret getting them those. The Apple parental controls don't work properly and they are so addictive.
The secondary school they will be going to is 500 metres from home, so any risk is extremely minimal. Children are more at risk from what they see online, bullying via WhatsApp groups etc, impact on attention spans than anything happening to them when they are out and about.