I don’t give a hoot about “Reducing my Carbon Footprint” like the Deep State would have us do these days,
BUT
I do have a low ‘internet footprint’, however.
The worst thing that can happen to me for anything I’ve done online is to get “Banned from Site” - pretty much the same as in my outdoor real life really…

There’s no point in trusting VPNs, as the same danger is there as with something like “Using a Credit Card to verify Adult ID” when it comes down to it…
Your trust in the “System” being put to you - is no better than the compensation package offered by the thing being sold you “if it should later prove unfit for purpose”…
Essentially, if there’s no “Free Built-In Liability Insurance” with any on-line product, especially those of a financial and/or security basing - it isn’t worth having.
No one would use “Online Banking” if the money in your account isn’t as good as cash money you might have in your pocket…
Why should anyone use anything “online” then that does NOT have any safeguards attached with it “As Standard”?
I wouldn’t buy a Car online, but I’d of course look for adverts offering a face-to-face in-person trade for a Car… If the guy asks for a bank transfer rather than takes cash money, then I don’t do it. Also if the meeting place is “not his private residence” so I get to find out where he lives - I don’t do the trade neither. If they don’t want me to go around theirs for it, then I’m quite happy for them to deliver to me at MY place - with them not getting paid until it gets here, of course (and I’ve had a quick test drive, in the case of me buying a car) I also get to find out if the car is likely to breakdown on my first trip out in it, as they got it to mine - without that happening, so it must also be taxed and insured, meaning it also is roadworthy - right?
I don’t typically buy groceries online anymore neither, as the “transaction” partaken - often ends one ending up with “Substitutes” to what you originally ordered.
Amazon? - I don’t have an amazon account, which means when I get those emails saying “Here’s your receipt for ■■■ ordered on Amazon” - I know it’s a con/phishing attempt, as how can I buy something on Amazon when I don’t have an account with them?
Ebay? - Never used it in my life.
Online Bank Account? - Have not had one since the 1990’s
EMAIL on the other hand - I’ve only EVER had the on-line “Webmail” version, never this “Pops” rubbish where emails are stored locally (along with any nasties attached…) on your own local machine…
If my machine gets hacked, the worst that can happen is I get a ruined machine, and end up replacing the whole thing with my missing data transferred over from my old, now removed slave hard drive.
I’ve also stripped out those nasty bits of windows/browsers that have this tendency to wear out said hard drive, because they are constantly accessing the thing all the time for no reason other than to provide telemetry to MS/google which they can bloody well go without… “Access Denied?” - Not on my own machine it ain’t! 
The worst internet virus I ever got was Zeus, which took me nearly six hours to get rid of, and involved me having to re-install windows on a blank hard drive to do it, and then transferring all my old data over from my now compromised former master drive, now acting as “Slave” to keep the virus software from running at boot-up. My daughter’s machine once got the “WannaCry” virus some years back (the same one that infected the NHS?) but that was easy to spot and stop, as it was heavily accessing the hard drive from the start (attempting to encrypt all files…) so damage was limited to a few seconds of that malicious code running, with the files already encrypted by that point - being nothing more than desktop wallpaper, and saved pages off the internet rather than her academic work etc.
Also, as mentioned before - I insist on “Chip ‘n’ Pin” because having to put a PIN in at the till - is a lot safer should I drop my card in the street than a card that can simply be swiped for small transactions at multiple checkouts to empty my account THAT way, rather than being used to put credits on burner phones, which is what I understand most stolen cards tend to get used for these days…
A real hacker - would hack the phone company’s credit systems to do that instead - woudn’t they?
…I guess “Hacking” isn’t what it was when I was young, and the internet was a minefield for anyone who didn’t know how to code their own solutions to the early Internet’s pitfalls… 
Remember “Exit Consols” - those annyoing pop-up boxes where three more would come up, every time you 'x’ed one out? or “Driveby Downloads” which would put some kind of Adware on your machine by you simply making the mistake of moving your mouse pointer across a “Banner Ad”…?