That's understandable. However, consider computer security, and be careful.

The sad fact of life is that the computer industry moves on to the Next Big Thing very quickly. Apple and Microsoft support only a few versions of operating systems — the current one, and the one before it... and sometimes the one before that. All that means is that hackers and criminals are all out rabid to exploit any holes in any OS or software package that isn't supported, but still gets a lot of use.

Computer manufacturers are notorious for dropping support for older models after 3-7 years, even if they last 10-20 years as mine do. I don't put my 10-year old Mac Mini or 21-year old Power Mac G4 on the Internet any more. They're stand-alone only, with networking disabled. The same goes for the old Win XP, Vista, and Win 7 machines we have.

While we can and do use third party Anti-Malware software (McAfee), we don't expect it to stop everything, especially exploits of unsupported OSes. So we are careful to keep our iMac up to date. The last OS it can handle is last year's 10.15.7 Catalina, so after this year, we will buy an M1 Mac. They have better security features than Intel Macs, anyway.

For the same reasons, I don't use older software. I up*grade* my applications once I know there is a stable version of any upgrade available. I up*date* them as updates become available. Adobe and Microsoft subscriptions both tell me when updates and upgrades are available.

Many of us over 60 remember how heavy industry used to be, where you could buy a machine and get parts for it for decades. The computer industry isn't like that. It churns its gut and hacks up the old machines, software, standards, and support after 3-7 years. It's still changing so rapidly that if you blink, you'll miss something.