Yes — Switzerland is one of the safest countries in the world for
student group travel. The US State Department rating is Level 1
("exercise normal precautions"), the lowest tier, and Swiss
violent-crime statistics sit well below the US average. The
realistic risks in Lausanne are pickpocketing at the Gare CFF
(the main train station) and along the Flon nightlife district
after dark, the occasional bike-and-scooter near-miss in the
pedestrian zones, and the steep, sometimes-icy stairs of the Old
Town in winter.
On a Passports teacher-led trip, the group is never on public
transport alone, the Tour Director runs a Day-1 briefing on m2
metro etiquette and currency (CHF, not euros), and every hotel is
pre-vetted for 24-hour reception and secure room storage. We
operate a 24/7 emergency line out of Boston, keep parents on a
daily-update channel, and have English-speaking medical contacts
in every city on our school group tours roster. For most teachers
running their first educational tours program in Europe, Lausanne
logistics feel easier than a domestic field trip.