as a Home Depot employee, let it be known: at least in my store: don't assume dads and moms aren't LGBTQ+, as there's plenty of overlap, and everyone seems pretty much at home here. also, as an appliance specialist, i find it amusing that it's the same-sex couples who are usually only ones who actually enjoy shopping for appliances as the task (shopping for and later using) seems more equitably split between them. although, i have observed, lesbian couples tend to view is as a dull task and gay male couples tend to view it as "shopping," therefore "fun".
i automatically give all discernably queer couples a "family" discount that is within my discretion.