|Whenever we use (in English) the word "people" in a sentence, we know the corresponding verb in that sentence should be plural, as in:|
"People think this is right."
So, here, the verb is not "thinks" (singular) but "think".
But if we translate this sentence into Spanish:
"La gente piensa que esto está bien"
1. It is a singular noun, so the verb must always be used in singular.
2. "Gente" is a feminine noun, so we must use feminine articles and adjectives.
Some notes about "la gente": This word has its origins in the Latin term "gens-gentis" (meaning tribe or family) and appears in texts since the year 1140 d.C. - This information has been taken from the site Etimologías_deChile and you can find more information (in Spanish) about "gente" here: Gente, according to Etimologias_deChile