My take is pretty practical: ratings exist to cue you into
Intensity and suitability. At the light end, labels like TV-Y, TV-Y7, or 'U'/'G' (in other countries) cover innocent relationships — hand-holding, blushy confessions, or slow, PG-13 style dating without sexualization. Mid-range ratings such as TV-PG or '12' indicate more overt dating, kissing, and emotional complexity suitable for preteens and teens. Higher ratings — TV-14, '15', 'M', or 'MA' — mean the romance includes sexual content, stronger language, or themes that require maturity to interpret. For example, animated series that explore adult relationships, infidelity, or explicit scenes are deliberately placed in adult categories to prevent younger viewers from stumbling into them.
I also notice platforms tagging episodes with short descriptors like 'sexual content', 'intense romantic themes', or 'mature relationships' — those are the real hands-on clues. Rating boards consider other elements too: violence, language, and drug use can bump a show into an older bracket even if the romance itself isn't graphic. From my viewpoint, the best way to navigate this is to combine the age rating with episode summaries or parental controls — that way you know whether a particular show is a sweet first-love story or something meant for
grown-up viewers. Personally, I appreciate creators who can convey deep romance without resorting to explicit content; nuance is underrated.