Okay, I know we're not that close to the same age, but I had the same kind of roller skates when I was a kid (don't lose the skate key or you couldn't adjust them!). And, it wasn't rocks that did me in, but acorns.
In grade school, we had roller skating parties at the roller rink, and that's where we got to rent the "fancy" rollerskates with 4 urethane wheels and a boot (that never fit quite right so you always got blisters on your feet). Popular lines to a song played at the roller rink were "We don't need no education, we don't need no self-control..." We all sang along to that.
The first video game I had was a box that connected to the TV and had a knob that let you select one of the three games on it...something like pong, jai alai, and paddleball...all three of which basically were played by turning another knob to move the straight line "paddle" up and down to bounce the square ball back and forth.
Eventually we graduated to the Atari 2600, that had Breakout, which was basically the same game, but in color and played with joysticks.

We still played pinball in the arcades, along with PacMan, Caterpillar and Space Invaders.
On TV, we watched shows like Starsky and Hutch, Dukes of Hazzard, Wonder Woman, The Six Million Dollar Man, and The Muppet Show...oh, and that was a TV where you had to get up and turn knobs to change channels, and whack the side of it when it started to hum or flicker while you were watching.