I know for me personally before i moved there was a few years while on a 15mbit/s connection where my ISP put a data cap on us at 150gb/month and that's something i had to share with others so it got ate up pretty quick... and this was implemented after like 15 years with the same ISP, before then data caps were a completely alien concept to me and something i only thought smartphones were dealing with. I was so pissed off when our plan was changed this way, i had to change the entire way i used the Internet.
Fortunately since i moved i have an unlimited cap again *knock on wood* and also a much higher speed at 50mbit/s after we had fibre lines installed (after actually having WORSE connection speeds for a brief time at 6mbit/s compared to where i lived previously, that was ROUGH)