Yes. The United Kingdom is rated Level 2 ("exercise increased
caution") by the US State Department — the same as France,
Italy, Germany, and most of Western Europe — and the elevated
level reflects generic European terrorism risk at public
events in London, not anything specific to the rural Highlands.
Violent crime in Perthshire is genuinely rare, petty theft in
a village of 2,000 is close to negligible, and the practical
risks in Aberfeldy are weather exposure, slipping on wet trails,
and cold-water hazards on the Tay rather than anything a
teacher would normally associate with international travel.
On a Passports teacher-led trip, every outdoor-activity
provider we use is licensed by the Adventure Activities
Licensing Authority (AALA) — the UK's statutory standard for
school group tours — and carries its own public-liability
insurance to UK school-trip specifications. The Tour Director
stays with the group on and off the water, the group never
wanders the Birks or the riverbank solo, and Passports runs a
24/7 emergency line out of Boston with English-speaking
medical contacts in Perth (the nearest large town, 30 minutes
south). Parents stay on a daily-update channel for the duration
of the trip.