Can't enable 32-bit architechture

[Circlotron2]

Trying to install wine 3.17 on a new machine,
Mint Mate 19, 64 bit
Followed all the instructions on this page https://wiki.winehq.org/Ubuntu
Trouble is, it will only do a 64-bit installation, and some 32 bit programs don't work properly.
I assume it is a 64 bit installation because it has Program Files and Program Files (x86)
I definitely did sudo dpkg --add-architecture i386
What am I doing wrong?

[Qowaf]

Perhaps this can help : "6.5.3 How do I create a 32 bit wineprefix on a 64 bit system?"
https://wiki.winehq.org/FAQ#How_do_I_cr ... _system.3F