500 Mbps is plenty...if not too much...for most households. You're alluding to a gigabit plan but think about this: one billion bits per second. 1 BILLION...per second. Do you know what you'd need to be doing on the Internet to use this much bandwidth?
For example, I don't exactly know what Google Stadia does (UHD gaming?) but I've read its Pro version requires at least 35 Mbps. This is the highest requirement I've seen...casually seen...because I'm sure there are more demanding applications out there.
You could have 10 people simultaneously using this thing in your house and still not put a dent in a gigabit plan:
* 35 Mbps × 10 = 350 Mbps
* 350 Mbps = 35% of a gigabit plan
Due to TCP/IP, retransmissions, network overhead, etc; you could safely double this 35 Mbps requirement to 70 Mbps and still be under 75% of a gigabit plan...for 10 simultaneous streams.
The only problem with a more practical plan is Cox. I've read subscribers rarely get 1 Gbps, site-throttling, over-subscribed neighborhood-nodes and, probably most importantly, upload speed.
Most subscribers probably don't need the 1 Gbps download speed but do need the 35 Mbps upload speed. Cox knows this.
There is absolutely no reason why Cox can't have a greater upload speed on their 500 Mbps plan.
Anyway, OP's data plan wouldn't be the problem.
