I grew up without mobile phones. Now in 2025 it's just much more practical to carry the phone with me. On the bike I use it as a bike computer and navigation, plus it's great to have for emergencies. When out in the town, any town, it's again a navigation, I can pay parking, public transport or call a taxi. And much much more. Nobody forces me to use social networks, so I don't, and I completely agree with you it sucks to see people sit in restaurants and spend most of the time looking at their phones.