Riding a skateboard is a phrase
A phrase can not have verb and subject together. riding a skateboard doesn't have subject. the others are clause.they have both subject and verb.
good luck.
The phrase, a decent respect for the opinions of mankind, was intended to convey a respect for what mankind thinks. Opinions are biases indulged by mankind inside their thought-matrices. Mankind is the species known as Homo Sapiens Sapiens.
So like what are you needing help on like wats the theme or
Being free and able to do anything
the answer is men in this culture are more skeptical than women.