This post pretty much sums up the whole point of why Drakeford's decision on what is and isn't essential is ridiculous (not a dig at you in any way, Rucksackfranzose). As I mentioned before, what is essential to some will not be essential to others, as different people have different needs.
To give a rough example of what I mean, here's a snippet of an article that I'll post a link to a bit further down.
Drakeford has since come out and said that this will not be reversed (as heaven forbid he could ever make a mistake). However, to make this farcical even better, they're now saying that the rules 'may be tweaked', 'there is discretion within the rules' and that 'a review into how the rules were implemented would be held on Monday'.
https://www.bbc.co.uk/news/uk-wales-54676457
Let's remind ourselves that supermarkets and other shops were not informed of what is essential (and can be sold) and what is non essential (what can't be sold) about 5 hours before the lockdown actually began (hence the whole covering up and blocking of aisles you've seen).
When you have to review your very own rules after 2 of 17 days into a lockdown that you announced (and had leaked) a week ago, you've clearly fucked up.