However, she and her parents really want me to continue being her instructor so this girl's lessons are pretty much turning into paid "fun with horses" time.
I'm thinking that it would be really nice for her to be able to take Lacey on a little trail ride (where she's riding and I follow along on foot) but I'm not sure if that's the worst idea ever.\
She's advanced enough to control whatever Lacey does and Lacey is really really well behaved for her.
I've also been having them practice (only the girl doesn't know she's been practicing) for a trail ride by having this girl take Lacey to areas of the field (3 acre field, so it's like a fenced in trail ride, kinda) she doesn't want to go to and control her well in those areas. She's been doing really well at that and Lacey is now ok with going pretty much anywhere this girl tells her to go.
Also, we're talking a 15 minute trail ride, 30 minutes round trip, no trotting/cantering, just walking on a trail that Lacey is very familiar with.
Is this the worst idea ever? Or is it ok? Would you do this?
If we do this, I'd have the girl ride Lacey in the pelham (no curb rein though, just snaffle) just to ensure that she has full control. I don't anticipate any problems but it's better to prepare for the worst and hope for the best.