Is it though? Do you actually live in the UK? Do you want to know how often it happens in London?
Compare standing outside a supermarket, repeatedly begging passers by to commit a crime for you every time you want alcohol, with the one time action of installing a VPN client on your device and it's obvious one law is enforceable while the other is not.
You are trying to make it dramatic by saying it is a crime - in this context installing a VPN is as much a crime (arguably with more traces / evidence) as buying cigarettes for teenagers.
You mean corner shop. We usually say shop in the UK. When you said you live in London, I didn't realise you meant London, Kentucky.
>You are trying to make it dramatic by saying it is a crime
It is literally a crime. https://www.gov.uk/alcohol-young-people-law
>installing a VPN is as much a crime
It is not. There is no law against circumventing age gates by means of a VPN. It is illegal to promote VPN services to children as a means of circumventing age gates, but the act itself is not illegal.