'According to some friends wo travelled to Germany particularly, it's you who are disgusted if you keep looking at them while doing it.'

Maybe you should travel to Germany yourself and find out if your friends talk the truth...

In western countries, this type of thing is punishable by law... if you get caught you stand to get jail time for indecent exposure and fornication...

Its definately not the norm west... best you travel a bit and find out for yourself...

PS... public displays of affection (holding hands, hugging and kissing) are not anything remotely the same as masturbating in public...