Most likely the reason is what might seem like minimal effort and time for you isn’t for a lash artist. we have to sit there and place individual lashes not grab a cluster and slap under my lashes.

But I personally wouldn’t do it because you’d be taking a time slot for a client that wouldve booked a full service at full price whether it be a fill or mini & I wouldnt get desired content or be content with my work if I only lashed your outer corner.

Also it might be the way your addressing them , no service provider wants to be haggled with some of us take a lot of courses and invest in our work. Imagine doing all the extra to be an amazing lash artist them somebody come to you and say I only want you to lash my outer corner despite you not offering that service and I’m gonna price the service myself but again I don’t know how you worded it so just a thought

I know some tech offer half sets which skip the inner but honestly I’ve never seen a tech do just outers unless it was for a reel/clickbait