Yes. Spain's US State Department rating is Level 2 ("exercise
increased caution") — the same as France, the UK, Germany, and
most of Western Europe — and the elevated level reflects generic
European terrorism risk, not anything specific to Barcelona.
Violent crime against travelers is genuinely rare. The actual risk
in Barcelona is pickpocketing, and it is concentrated: La Rambla,
the Metro L3 green line, the Sagrada Família entry queue, the
Barceloneta beach, and the Sants-Estació train station account for
most of what happens on student trips.
On a Passports teacher-led trip, the group is never on the Metro
alone, the Tour Director runs a pickpocket-awareness briefing on
the first evening, 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 we visit.
For most teachers running their first school group tours to Spain,
the logistics feel easier than a domestic field trip because the
Tour Director handles transport, tickets, and problem-solving end
to end.