As I've discussed elsewhere (https://danluu.com/talent/, https://twitter.com/danluu/status/1477001191548542980, https://mastodon.social/@danluu/109537224752779343, etc.), of course there are massive advantages to growing up middle class and even larger advantages to growing up wealthy but, AFAICT, none of the advantages are related to this Vimes' boots thing people love trotting out.
People I polled had the same reaction — being poor is terrible, just not for the Vimes' boots reason that middle-class people and rich people love to cite.