Can we start using a comma as a thousands separator instead of a period?
It seems weird that a system would eventually settle on just full stops and commas, yet not settle on where to put them. If your system is going to converge strongly on two symbols, finish the job!
It just reflects the spoken language. And having the unused symbol then be the thousand separator is natural.
Same reason why there are different date formats, weeks start on Sundays/Mondays (or Saturdays), long/short scale numbers, drives on left/right, different wall sockets and plugs, different train gauges, and of course metric/imperial.
It's a mix of tradition, conventions, inertia.
"AI is making the world better by enabling business to circumvent the leading loss of profit."
"The economy is making a comeback: A new gas station has helped rejuvinate the job market by offering $15/hr jobs to replace those 70k/year careers."
"Thanks to Flock and human behavior patterns, we can arrest criminals in near real-time." (Okay, this one isn't a thing, yet.)