The day out which includes an expensive entry place and/or lunch bought there is very rare.
Lots of days out, but to places where we have a membership and then spend less than £10 having a coffee/ice cream. Because the days out are regular, there’s not such need to splash out on full scale meal, gift shop etc. Picnics are definitely your friend.
The odd big ticket day out is often funded by Tesco ClubCard or similar. Would rarely have a meal there too - expensive and often not very good.
A lot comes down to being an adept ‘day-tripper’ so none of it is a big deal. Lots of people can throw together a packed lunch or picnic very quickly, keep a picnic blanket in the car and have reusable coffee cups and maybe a flask. They whizz off and don’t go to the really expensive places, but regularly visit the same place or group of places. Like this, they often don’t need to go for the who,e day as ‘value’ isn’t so important, so arriving after lunch and leaving by 4.30 can work.
No-one needs to regularly do zoo trips, theme parks, safari park, expensive entry places and also eat out whilst there. The key is to be getting out regularly.