I can't believe you got downvoted for basically suggesting to people who think 50% ABV whiskey is too strong to drink shots of it, mix it down with something or just drink beer.
Besides, it's leaving out a lot to say that today's weed is so strong and more so than what hippies had in the 70s. Surely cannabis strains were bred and cultivated back in the day and people with access did get the good stuff as opposed to some seedy mexican brick weed with stems and leaves in it?
If the stuff now is 20% thc and the garbage in the 70s you remember having was 5% just smoke a quarter instead, no big deal. Scales are not illegal nor expensive.
And if you desire a better THC:CBD ratio you only have to choose better, thanks to a regulated market.