Are free seminars and webinars considered a scam?

WHEN offered something free of charge, like coffee, ham, doughnuts or snacks in supermarkets, people would line up to get their share, no matter how miniscule the sample was. Marketers do it every day, even on social media as they dish out free interesting materials. And they do it in different variations via online shopping.

They sell under a "buy one, get two" scheme for the price of one, except they're selling products that would expire in three days. Even our neighborhood store is doing something like it. When my wife buys fruits and vegetables, the owner would routinely give her free one piece of lakatan banana, if not Mandarin orange. Not so much for a freebie, but it's the spirit of giving that matters.