Why does the speaker use "these" instead of "this" here? Is it because both shoes are tight?

Native speaker’s answer
Rebecca
That's right! The speaker is talking about both shoes, so the plural "these" is used since there is more than one shoe. You can use "these" for other clothing items with two separate items or parts, such as pant legs, sleeves, socks, earrings, and so on. Ex: These pants are too tight for me now. => one pair of pants, but two pant legs Ex: This is my favourite shirt. => one shirt Ex: These shoes are brand new. => one shoe on each foot