E-scooters sit in a newer, stricter legal category than bicycles almost everywhere, and the rules are still shifting year to year, so check the current national or city regulation rather than trusting last year's blog post. The common global patterns: helmet requirements for e-scooter riders exist in many jurisdictions even where cyclists ride bare-headed, minimum ages typically run 16 or 18, sidewalks are widely off-limits, passengers are prohibited, and speed caps apply. Faster e-bikes are often reclassified as mopeds, dragging in helmet, license, and insurance requirements that surprise riders who thought they were on a bicycle.
Rental apps are actually a decent first reference here, since Lime, Bolt, and their local equivalents display the city's age and helmet rules during unlock and geo-fence banned zones, though the app is a convenience, not the law itself.
Enforcement concentrates exactly where tourists ride, in city centers and beach promenades, with on-the-spot fines for helmetless riding where required, doubling up, and sidewalk use. Practical bottom line: assume the scooter rules are stricter than the bike rules, read the unlock screen, and if the machine is fast or throttle-driven, treat it like a small motorbike in both law and caution.