When I went to school we used to be able to buy at the fish and chip shop across the road a serving of chips and a couple of scallops for 5-10 cents and then with your copper you could get some mixed lollies.Nobody went out for coffee when I was at school, that was an adult thing. Been a bit of a cultural shift there.
I remember going to school with a couple of gold coins and that bought recess, lunch and after school tennis. Make your own way there, make your own way home. The equivalent today I imagine would be at least $25 or so (been a while since I was at a school canteen) given insurances and supervision etc. for sports. We're talking 1995 vs 2019 but it's more than inflation.