@LlamaFace19
I think it's too far every day for a 4 year old to walk. And twice too - there and back. Two and a half miles a day all the time is a bit much. (IMO.) I'm an old gimmer now, but I remember having to walk to school with my mother when I was in infants and juniors - and it seemed soooooo long, especially in the winter. But when I look at the map now, it was two thirds of a mile - one way. It seemed much longer to me when I was so young/small.
Still, it can't hurt to try it out I suppose. The weather is very unpredictable in the UK though, and you could all be half way there and the Heavens decide to open. Your child will spend the day soaked. Unless you always put her in a raincoat and make her carry a brolly.
You will also get days when the rain is just too heavy, or the snow is too heavy and deep, or it is just too bitterly cold, or the sun is too hot.. And the hottest weather is not always going to be in the 6 week school holiday in July and August. Case in point, hottest day of the year this year, with unbearable humidity was the 9th of September, in term time!
And the whole of September now (virtually) has been like you would expect it to be in late July. An actual heatwave. In September! It would have been very unreasonable to expect a little 4 year old to walk almost two and a half miles there and back in 30-32 degrees C temperatures with 90% humidity!
I don't think I would ever have done this with mine to be honest. But then I never had that 'dilemma.' My DC school was 5 minutes walk, when they were at primary, and 3.5 miles at secondary. So we walked to primary, and I took them to secondary in the car.
There was a bus, but it went at 7.20am, and took an hour to get there, as it went through all the suburbs and villages etc to pick up all the kids. (They had to be there by 8.40am...) It took 10 minutes in the car! So this meant we didn't even have to leave the house til around 8.25am ... (Gave an extra 5 minutes in case of hold ups.) So we could get up at 7.30am instead of getting up at 6.20am which we would have had to do if they had got the bus!