The "to" in "take to" is a preposition (this is just a property of the phrase "take to"). Preposition "to" must must have a noun or noun phrase as its object. "drinking alcohol" serves as a noun phrase (gerund phrase), but "drink alcohol" doesn't.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
The "to" in "take to" is a preposition (this is just a property of the phrase "take to"). Preposition "to" must must have a noun or noun phrase as its object. "drinking alcohol" serves as a noun phrase (gerund phrase), but "drink alcohol" doesn't.
Contrast e.g. with "want to", where the "to" is an infinitive marker, so is followed by a verb, e.g. "want to drink alcohol".