Why not let mazal77 do right by this mitzvah?
It’s a personal thing and may be what mazal77 needs to do to grow in Yiddishkeit.
Plus Ugg boots are a big investment. If mazal77 is thinking about purchasing a pair, which will keep her/his feet warm and protected, then I can see how it would be essential to know that she/he is walking in line with Hashem’s Will from the very first step outside.
Sorry if I am taking things personally. When I went vegan I got rid of all my leather shoes and belts. It was such a big deal to make sure that I wasn’t walking around with something that was so against my morals at the time. That was my version.
And this is Torah.
How much more important is this?
Yes understandable to invest in the big picture. Yet sometimes smaller practical details help form the borders with smaller manageable steps (like when you make the borders of a puzzle using edge pieces).