Trend indicators vs. oscillators

I'm still learning this stuff...

Am I right in my understanding that I should focus on trend indicators to determine when a trend is emerging, and I should focus on oscillators to determine when a trend may be about to turn (i.e., end)?

If that's correct, then why doesn't an oscillator indicate the beginning of a trend? Or maybe it does if you have a trend in one direction followed by a trend in the opposite direction, but it's not so good when the market is moving sideways and a trend is emerging?

Squid

Well actually most oscillators become less effective when a trend is in place, so be careful using them. Indicators such as the stochastic, RSI etc, that represent overbough/oversold conditions work best in ranging, sideways movement.

Price alone is the best indication of when a trend has begun and when it has ended, coupled with things like trend lines, an oscillator will not help you in that regard in my opinion.

Trend can be as easy as sticking a wet finger into the wind and looking at the slope of the 63 (or 100 if you choose) EMA of the timeframe that is 4 to 5 times higher than the one you are trading on.

Or it can be as techie as using a Directionial Movment System (ADX) type indicator. If you use the DMA just see if the signal is above about 20 or 25 if it is there is a trend on. Then just watch the action of the DI+ and DI- lines for the direction of the trend.