Those who invested in the local community and built networks that way ... can I ask, did you work FT whilst doing this? I'd love to be able to do this but I honestly am not sure where I'd find the time!
I'm quite late replying to this @Sofielou (because of the full time work!) but yes, I did. DH and I were both full time in demanding jobs (lots of evening work), commutes over an hour and in the office every day. Eldest was in nursery and then before/after school club at school so I rarely if ever did the school gate.
Like I say, it wasn't easy, especially for someone like me who is quite shy/reserved/finds it really hard to just bowl up to someone and say hi. But I really made sure I prioritised it.
Once DS1 hit around 3, parties and play dates were a godsend for making those connections. Hung out at the park nearest nursery a lot in case we saw a familiar face and could strike up a conversation. Looked at weekend classes DS could do. And then over again at school - invited kids and their parents around at weekends, made sure we didn't drop and run at parties no matter how tempting it was. Made a rule never to decline a social invitation just because we were knackered. Volunteered for the bloody PTA. I took the chance and invited people out for a drink/coffee even though it went against everything I wanted to do and often at the weekends or evenings I just wanted to retreat into the sanctuary of my little family. I won't lie, it often felt a bit hellish.
But the flip side was that when the train was late I had a group of people I could text begging for help; when I was pregnant with DS2 people reached out to offer to look after DS1, etc etc.
I think Covid must have made it really tough for parents who have smaller kids now as you missed so much of the parties/play dates bit.
TL;DR: yes, I worked full time in a demanding job, I had to choose to really prioritise it over the shorter-term things I'd rather have been doing. I'm glad now that I did.