I googled the question, were people frightened by groups of mods and rockers"
read the answers carefully - they bear an uncanny resemblance to what some posters have said how they feel about their experiences with different cultures and exactly same reasons.
"Yes, many people were genuinely frightened by large groups of mods and rockers. For middle-class Britons accustomed to post-war peace and quiet, the sudden emergence of massive, loud, and visibly aggressive youth tribes—clashing on beaches and intimidating locals—caused widespread alarm and a national.The fear and public reaction were driven by several key factors:
Sensationalised Media Coverage The media capitalised on the clashes (particularly during the 1964 Whitsun Bank Holiday at coastal towns like Brighton and Margate) to create a nationwide "moral panic". Tabloids frequently published screaming headlines like "Battle of Brighton" and referred to the teenagers as vermin or mutated locusts
and worse for violence!
Visible Violence While actual property damage was relatively low, the physical confrontations were incredibly real for those caught in the middle. Large crowds of up to 1,000 youths engaged in running battles, overturning scooters, throwing deck chairs and pebbles, and forcing terrified families off the beach
Disrupting the Status Quo These were the first generation of teenagers with their own disposable income and freedom of movement. Older generations feared the perceived disintegration of traditional British character as young people took over town centres, engaged in heavy drinking, and ignored authority.
Exaggerated Reality Decades later, historians and participants noted that the press sometimes amplified the fear. Tabloids exaggerated the danger by staging photos or turning isolated skirmishes into evidence of all-out gang warfare. Many locals who lived in these coastal towns at the time later reported that the events felt heavily overblown by the national press.
The Disintegration of National Character The media framed the subcultures as a threat to traditional British law, order, and morality.
Further research shows the moral panics that developed around attacks on girls and women emerged during the 70's and 80's and related not to other cultures but within Brit white culture.