Where do you live? I think lifestyles vary hugely depending on the types of areas people live in; urban, suburban, rural etc.
On "free" days (when I'm not working/DS isn't at nursery), we'll usually be out of the house for a morning or an afternoon (playground, park, walk in the woods, shopping etc.). On weekends, we do longer trips with DH to places that we have to drive to (swimming-pool, splash parks, big adventure playgrounds). Some of these cost money but some don't, though I'll often grab a coffee for me and an ice-cream for DS (so £4-£5).
We're also lucky to have lots of free places to visit and activities near us (London) - museums, parks, river walks etc. We used to go into the centre frequently pre-Covid and have just started doing this again. Quite often we just pay the bus/tube fare and then DC has an ice cream and I have a coffee (so around £6-£10 for a day's entertainment). There are great free museums in London (although they do ask for a donation), including one with a big paddling-pool for children. When my DS was a baby, we lived more centrally and I used to enjoy walking him up and down the South Bank in London and buying lunch from the street food market there.
I guess it depends on what you have available round about where you live. One of the perks of living in a city (at least where we live!) is that you just need to leave your house and there's a cafe around the corner and a playground in the next street. We find it much easier to pop out than we would if we needed to drive places the whole time.