20mbits at bottom tier would be fine, but there are currently top tier cable plans, 1gbps down and still only 10mbps up. Upload speed needs to scale at least proportionallly, if not symmetrically.
I felt so gaslit by optimum because they advertise 1gbps parallel.
But, if you don't have their fiber offering in your region they'll happily sell you 1gbps/24mbps for the same price.
Although, unless I complain, they fail to give me even 300mbps down.
Isn't that partly a consequence of the cable internet network design? The existing DOCSIS standards are designed to favour download speeds, so the infrastructure doesn't allow asymmetric connections.
If I understand correctly it’s not intrinsic to the DOCSIS standards, it’s just how more or less every cable company chooses to allocate channels. Think like a cable company has 100 channels they may be able to use on a given line, and they choose to put 90 of them on download and 10 on upload (numbers are made up to convey idea). Now they have only a small amount of available upload bandwidth and lots of download, but they could have set it up to be 50/50 to have it be equal.