True Strike is often considered as a poor or at least very situational cantrip, as is also discussed in the question Why would I ever cast True Strike?. On the other hand, the answers also show that there are indeed situations in which the cantrip can be very useful. I like these scenarios, and I would like to see them in more games, but players hardly ever pick True Strike.
From my experience, the main problem is its high opportunity cost: Most characters get only few cantrips, so choosing a cantrip with such situational benefit is not very attractive. If it were a 1st level spell, it would even get a bit weaker in the sense that it now would consume a spell slot, but learning it would be much less of an investment. Since the cantrip does not scale with the character level, changing it to a 1st level spell wouldn’t need any further mechanical adjustments. Hence my question:
Would it be balanced to change True Strike from a cantrip to a 1st level spell in order to encourage players to choose it at all?