That's not true, unlimited SMS have been a thing for at least 15 years in Europe, well before WhatsApp became popular. In my experience, people switched to WhatsApp because of group chats and images (MMS were expensive).
Depends on the country. In Czechia, unlimited SMS plans used to be expensive.
That changed, but e.g. with my pre-paid plan I still pay 12 cents per SMS.
Historically there was also a problem that unlimited SMS plans worked only within a country. Now it's a bit better being EU-wide, but still not worry free.
That changed, but e.g. with my pre-paid plan I still pay 12 cents per SMS.
Historically there was also a problem that unlimited SMS plans worked only within a country. Now it's a bit better being EU-wide, but still not worry free.